blob: 16306b42e1b94db8e5bb5692069922b9a9a53422 [file] [log] [blame]
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/base_switches.h"
#include "base/command_line.h"
#include "base/feature_list.h"
#include "base/memory/fake_memory_pressure_monitor.h"
#include "base/memory/memory_pressure_listener.h"
#include "base/run_loop.h"
#include "base/test/metrics/histogram_tester.h"
#include "base/test/scoped_feature_list.h"
#include "base/test/simple_test_tick_clock.h"
#include "build/build_config.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/devtools/devtools_window_testing.h"
#include "chrome/browser/media/webrtc/media_capture_devices_dispatcher.h"
#include "chrome/browser/media/webrtc/media_stream_capture_indicator.h"
#include "chrome/browser/resource_coordinator/local_site_characteristics_data_unittest_utils.h"
#include "chrome/browser/resource_coordinator/tab_lifecycle_unit.h"
#include "chrome/browser/resource_coordinator/tab_lifecycle_unit_external.h"
#include "chrome/browser/resource_coordinator/tab_manager.h"
#include "chrome/browser/resource_coordinator/tab_manager_features.h"
#include "chrome/browser/resource_coordinator/tab_manager_web_contents_data.h"
#include "chrome/browser/resource_coordinator/time.h"
#include "chrome/browser/resource_coordinator/utils.h"
#include "chrome/browser/ui/browser.h"
#include "chrome/browser/ui/browser_commands.h"
#include "chrome/browser/ui/browser_list.h"
#include "chrome/browser/ui/browser_window.h"
#include "chrome/browser/ui/find_bar/find_bar_controller.h"
#include "chrome/browser/ui/tabs/tab_strip_model.h"
#include "chrome/common/chrome_features.h"
#include "chrome/common/url_constants.h"
#include "chrome/test/base/in_process_browser_test.h"
#include "chrome/test/base/interactive_test_utils.h"
#include "chrome/test/base/ui_test_utils.h"
#include "content/public/browser/navigation_details.h"
#include "content/public/browser/navigation_entry.h"
#include "content/public/browser/notification_service.h"
#include "content/public/browser/notification_types.h"
#include "content/public/browser/render_frame_host.h"
#include "content/public/browser/render_process_host.h"
#include "content/public/common/content_switches.h"
#include "content/public/test/browser_test_utils.h"
#include "content/public/test/test_navigation_observer.h"
#include "content/public/test/test_utils.h"
#include "net/dns/mock_host_resolver.h"
#include "url/gurl.h"
using content::OpenURLParams;
#if defined(OS_WIN) || defined(OS_MACOSX) || defined(OS_LINUX) || \
defined(OS_CHROMEOS)
namespace resource_coordinator {
namespace {
constexpr char kBlinkPageLifecycleFeature[] = "PageLifecycle";
constexpr base::TimeDelta kShortDelay = base::TimeDelta::FromSeconds(1);
constexpr char kMainFrameFrozenStateJS[] =
"window.domAutomationController.send(mainFrameFreezeCount);";
constexpr char kChildFrameFrozenStateJS[] =
"window.domAutomationController.send(childFrameFreezeCount);";
bool ObserveNavEntryCommitted(const GURL& expected_url,
const content::NotificationSource& source,
const content::NotificationDetails& details) {
return content::Details<content::LoadCommittedDetails>(details)
->entry->GetURL() == expected_url;
}
bool IsTabDiscarded(content::WebContents* web_contents) {
return TabLifecycleUnitExternal::FromWebContents(web_contents)->IsDiscarded();
}
class ExpectStateTransitionObserver : public LifecycleUnitObserver {
public:
ExpectStateTransitionObserver(LifecycleUnit* lifecyle_unit,
LifecycleUnitState expected_state)
: lifecycle_unit_(lifecyle_unit), expected_state_(expected_state) {
lifecycle_unit_->AddObserver(this);
}
~ExpectStateTransitionObserver() override {
lifecycle_unit_->RemoveObserver(this);
}
void AllowState(LifecycleUnitState allowed_state) {
allowed_states_.insert(allowed_state);
}
void Wait() {
EXPECT_NE(expected_state_, lifecycle_unit_->GetState());
run_loop_.Run();
EXPECT_EQ(expected_state_, lifecycle_unit_->GetState());
}
private:
// LifecycleUnitObserver:
void OnLifecycleUnitStateChanged(
LifecycleUnit* lifecycle_unit,
LifecycleUnitState last_state,
LifecycleUnitStateChangeReason reason) override {
EXPECT_EQ(lifecycle_unit, lifecycle_unit_);
if (lifecycle_unit_->GetState() == expected_state_) {
run_loop_.Quit();
} else {
LOG(ERROR) << "transition to state "
<< static_cast<int>(lifecycle_unit_->GetState());
EXPECT_TRUE(
base::ContainsKey(allowed_states_, lifecycle_unit_->GetState()));
}
}
LifecycleUnit* const lifecycle_unit_;
const LifecycleUnitState expected_state_;
std::set<LifecycleUnitState> allowed_states_;
base::RunLoop run_loop_;
DISALLOW_COPY_AND_ASSIGN(ExpectStateTransitionObserver);
};
} // namespace
class TabManagerTest : public InProcessBrowserTest {
public:
TabManagerTest() : scoped_set_tick_clock_for_testing_(&test_clock_) {
// Start with a non-null TimeTicks, as there is no discard protection for
// a tab with a null focused timestamp.
test_clock_.Advance(kShortDelay);
scoped_feature_list_.InitAndEnableFeature(
features::kSiteCharacteristicsDatabase);
}
void SetUpCommandLine(base::CommandLine* command_line) override {
command_line->AppendSwitchASCII(switches::kEnableBlinkFeatures,
kBlinkPageLifecycleFeature);
}
void SetUpOnMainThread() override {
InProcessBrowserTest::SetUpOnMainThread();
host_resolver()->AddRule("*", "127.0.0.1");
}
void OpenTwoTabs(const GURL& first_url, const GURL& second_url) {
// Open two tabs. Wait for both of them to load.
content::WindowedNotificationObserver load1(
content::NOTIFICATION_LOAD_COMPLETED_MAIN_FRAME,
content::NotificationService::AllSources());
OpenURLParams open1(first_url, content::Referrer(),
WindowOpenDisposition::CURRENT_TAB,
ui::PAGE_TRANSITION_TYPED, false);
content::WebContents* web_contents = browser()->OpenURL(open1);
load1.Wait();
if (URLShouldBeStoredInLocalDatabase(first_url))
testing::ExpireLocalDBObservationWindows(web_contents);
content::WindowedNotificationObserver load2(
content::NOTIFICATION_LOAD_COMPLETED_MAIN_FRAME,
content::NotificationService::AllSources());
OpenURLParams open2(second_url, content::Referrer(),
WindowOpenDisposition::NEW_BACKGROUND_TAB,
ui::PAGE_TRANSITION_TYPED, false);
web_contents = browser()->OpenURL(open2);
load2.Wait();
// Expire all the observation windows to prevent the discarding and freezing
// interventions to fail because of a lack of observations.
if (URLShouldBeStoredInLocalDatabase(second_url))
testing::ExpireLocalDBObservationWindows(web_contents);
ASSERT_EQ(2, tsm()->count());
}
// Opens 2 tabs. Calls Freeze() on the background tab. Verifies that it
// transitions to the PENDING_FREEZE, and that onfreeze callbacks runs on the
// page. The background tab is PENDING_FREEZE when this returns.
void TestTransitionFromActiveToPendingFreeze() {
// Setup the embedded_test_server to serve a cross-site frame.
content::SetupCrossSiteRedirector(embedded_test_server());
ASSERT_TRUE(embedded_test_server()->Start());
// Opening two tabs, where the second tab is backgrounded.
GURL main_url(
embedded_test_server()->GetURL("a.com", "/iframe_cross_site.html"));
OpenTwoTabs(GURL(chrome::kChromeUIAboutURL), main_url);
constexpr int kFreezingIndex = 1;
LifecycleUnit* const lifecycle_unit = GetLifecycleUnitAt(kFreezingIndex);
content::WebContents* const content = GetWebContentsAt(kFreezingIndex);
// Grab the frames.
content::RenderFrameHost* main_frame = content->GetMainFrame();
ASSERT_EQ(3u, content->GetAllFrames().size());
// The page has 2 iframes, we will use the first one.
content::RenderFrameHost* child_frame = content->GetAllFrames()[1];
// Verify that the main frame and subframe are cross-site.
EXPECT_NE(main_frame->GetLastCommittedURL().GetOrigin(),
child_frame->GetLastCommittedURL().GetOrigin());
if (content::AreAllSitesIsolatedForTesting()) {
EXPECT_NE(main_frame->GetSiteInstance(), child_frame->GetSiteInstance());
EXPECT_NE(main_frame->GetProcess()->GetID(),
child_frame->GetProcess()->GetID());
}
// Ensure that the tab is hidden or backgrounded.
bool hidden_state_result;
EXPECT_TRUE(content::ExecuteScriptAndExtractBool(
main_frame,
"window.domAutomationController.send("
"window.document.hidden);",
&hidden_state_result));
EXPECT_TRUE(hidden_state_result);
EXPECT_TRUE(content::ExecuteScript(
main_frame,
"if (window.location.pathname != '/iframe_cross_site.html')"
" throw 'Incorrect frame';"
"mainFrameFreezeCount = 0;"
"window.document.onfreeze = function(){ mainFrameFreezeCount++; };"));
EXPECT_TRUE(content::ExecuteScript(
child_frame,
"if (window.location.pathname != '/title1.html') throw 'Incorrect "
"frame';"
"childFrameFreezeCount = 0;"
"window.document.onfreeze = function(){ childFrameFreezeCount++; };"));
// freeze_count_result should be 0 for both frames, if it is undefined then
// we are in the wrong frame/tab.
int freeze_count_result;
EXPECT_TRUE(content::ExecuteScriptAndExtractInt(
main_frame, kMainFrameFrozenStateJS, &freeze_count_result));
EXPECT_EQ(0, freeze_count_result);
EXPECT_TRUE(content::ExecuteScriptAndExtractInt(
child_frame, kChildFrameFrozenStateJS, &freeze_count_result));
EXPECT_EQ(0, freeze_count_result);
// Freeze the tab. If it fails then we might be freezing a visible tab.
EXPECT_EQ(LifecycleUnitState::ACTIVE, lifecycle_unit->GetState());
EXPECT_TRUE(lifecycle_unit->Freeze());
EXPECT_EQ(LifecycleUnitState::PENDING_FREEZE, lifecycle_unit->GetState());
}
// Opens 2 tabs. Calls Freeze() on the background tab. Verifies that it
// transitions to the PENDING_FREEZE and FROZEN states, and that onfreeze
// callbacks runs on the page. The background tabs is FROZEN when this
// returns.
void TestTransitionFromActiveToFrozen() {
TestTransitionFromActiveToPendingFreeze();
{
ExpectStateTransitionObserver expect_state_transition(
GetLifecycleUnitAt(1), LifecycleUnitState::FROZEN);
expect_state_transition.Wait();
}
content::WebContents* const content = GetWebContentsAt(1);
content::RenderFrameHost* main_frame = content->GetMainFrame();
content::RenderFrameHost* child_frame = content->GetAllFrames()[1];
// freeze_count_result should be exactly 1 for both frames. The value is
// incremented in the onfreeze callback. If it is >1, then the callback was
// called more than once.
int freeze_count_result = 0;
EXPECT_TRUE(content::ExecuteScriptAndExtractInt(
main_frame, kMainFrameFrozenStateJS, &freeze_count_result));
EXPECT_EQ(1, freeze_count_result);
EXPECT_TRUE(content::ExecuteScriptAndExtractInt(
child_frame, kChildFrameFrozenStateJS, &freeze_count_result));
EXPECT_EQ(1, freeze_count_result);
}
// Gets the TabLifecycleUnit from |contents| and sends the signal that
// indicates that the page is frozen. In production, this is sent by the
// renderer process. This is done to finish a proactive tab discard.
void SimulateFreezeSignal(content::WebContents* contents) {
GetTabLifecycleUnitSource()
->GetTabLifecycleUnit(contents)
->UpdateLifecycleState(mojom::LifecycleState::kFrozen);
}
TabManager* tab_manager() { return g_browser_process->GetTabManager(); }
TabStripModel* tsm() { return browser()->tab_strip_model(); }
content::WebContents* GetWebContentsAt(int index) {
return tsm()->GetWebContentsAt(index);
}
LifecycleUnit* GetLifecycleUnitAt(int index) {
return GetTabLifecycleUnitSource()->GetTabLifecycleUnit(
GetWebContentsAt(index));
}
base::test::FakeMemoryPressureMonitor fake_memory_pressure_monitor_;
base::SimpleTestTickClock test_clock_;
ScopedSetTickClockForTesting scoped_set_tick_clock_for_testing_;
base::test::ScopedFeatureList scoped_feature_list_;
};
class TabManagerTestWithTwoTabs : public TabManagerTest {
public:
TabManagerTestWithTwoTabs() = default;
void SetUpOnMainThread() override {
TabManagerTest::SetUpOnMainThread();
// Open 2 tabs with default URLs in a focused tab strip.
GetTabLifecycleUnitSource()->SetFocusedTabStripModelForTesting(tsm());
OpenTwoTabs(GURL(chrome::kChromeUIAboutURL),
GURL(chrome::kChromeUICreditsURL));
}
private:
DISALLOW_COPY_AND_ASSIGN(TabManagerTestWithTwoTabs);
};
// Flaky on Mac. http://crbug.com/857418
#if defined(OS_MACOSX)
#define MAYBE_TabManagerBasics DISABLED_TabManagerBasics
#else
#define MAYBE_TabManagerBasics TabManagerBasics
#endif
IN_PROC_BROWSER_TEST_F(TabManagerTest, MAYBE_TabManagerBasics) {
using content::WindowedNotificationObserver;
// Get three tabs open.
test_clock_.Advance(kShortDelay);
WindowedNotificationObserver load1(
content::NOTIFICATION_NAV_ENTRY_COMMITTED,
content::NotificationService::AllSources());
OpenURLParams open1(GURL(chrome::kChromeUIAboutURL), content::Referrer(),
WindowOpenDisposition::CURRENT_TAB,
ui::PAGE_TRANSITION_TYPED, false);
browser()->OpenURL(open1);
load1.Wait();
test_clock_.Advance(kShortDelay);
WindowedNotificationObserver load2(
content::NOTIFICATION_NAV_ENTRY_COMMITTED,
content::NotificationService::AllSources());
OpenURLParams open2(GURL(chrome::kChromeUICreditsURL), content::Referrer(),
WindowOpenDisposition::NEW_FOREGROUND_TAB,
ui::PAGE_TRANSITION_TYPED, false);
browser()->OpenURL(open2);
load2.Wait();
test_clock_.Advance(kShortDelay);
WindowedNotificationObserver load3(
content::NOTIFICATION_NAV_ENTRY_COMMITTED,
content::NotificationService::AllSources());
OpenURLParams open3(GURL(chrome::kChromeUITermsURL), content::Referrer(),
WindowOpenDisposition::NEW_FOREGROUND_TAB,
ui::PAGE_TRANSITION_TYPED, false);
browser()->OpenURL(open3);
load3.Wait();
EXPECT_EQ(3, tsm()->count());
// Navigate the current (third) tab to a different URL, so we can test
// back/forward later.
WindowedNotificationObserver load4(
content::NOTIFICATION_NAV_ENTRY_COMMITTED,
content::NotificationService::AllSources());
OpenURLParams open4(GURL(chrome::kChromeUIVersionURL), content::Referrer(),
WindowOpenDisposition::CURRENT_TAB,
ui::PAGE_TRANSITION_TYPED, false);
browser()->OpenURL(open4);
load4.Wait();
// Navigate the third tab again, such that we have three navigation entries.
WindowedNotificationObserver load5(
content::NOTIFICATION_NAV_ENTRY_COMMITTED,
content::NotificationService::AllSources());
OpenURLParams open5(GURL("chrome://dns"), content::Referrer(),
WindowOpenDisposition::CURRENT_TAB,
ui::PAGE_TRANSITION_TYPED, false);
browser()->OpenURL(open5);
load5.Wait();
EXPECT_EQ(3, tsm()->count());
// Advance time so everything is urgent discardable.
test_clock_.Advance(kBackgroundUrgentProtectionTime);
// Discard a tab.
EXPECT_TRUE(
tab_manager()->DiscardTabImpl(LifecycleUnitDiscardReason::URGENT));
EXPECT_EQ(3, tsm()->count());
if (base::FeatureList::IsEnabled(features::kTabRanker)) {
// In testing configs with TabRanker enabled, we don't always know which tab
// it will kill. But exactly one of the first two tabs should be killed.
EXPECT_TRUE(IsTabDiscarded(GetWebContentsAt(0)) ^
IsTabDiscarded(GetWebContentsAt(1)));
} else {
// With TabRanker disabled, it should kill the first tab, since it was the
// oldest and was not selected.
EXPECT_TRUE(IsTabDiscarded(GetWebContentsAt(0)));
EXPECT_FALSE(IsTabDiscarded(GetWebContentsAt(1)));
}
EXPECT_FALSE(IsTabDiscarded(GetWebContentsAt(2)));
// Run discard again. Both unselected tabs should now be killed.
EXPECT_TRUE(
tab_manager()->DiscardTabImpl(LifecycleUnitDiscardReason::URGENT));
EXPECT_EQ(3, tsm()->count());
EXPECT_TRUE(IsTabDiscarded(GetWebContentsAt(0)));
EXPECT_TRUE(IsTabDiscarded(GetWebContentsAt(1)));
EXPECT_FALSE(IsTabDiscarded(GetWebContentsAt(2)));
// Run discard again. It should not kill the last tab, since it is active.
EXPECT_FALSE(
tab_manager()->DiscardTabImpl(LifecycleUnitDiscardReason::URGENT));
EXPECT_TRUE(IsTabDiscarded(GetWebContentsAt(0)));
EXPECT_TRUE(IsTabDiscarded(GetWebContentsAt(1)));
EXPECT_FALSE(IsTabDiscarded(GetWebContentsAt(2)));
// Kill the third tab after making second tab active.
tsm()->ActivateTabAt(1, true);
// Advance time so everything is urgent discardable again.
test_clock_.Advance(kBackgroundUrgentProtectionTime);
EXPECT_EQ(1, tsm()->active_index());
EXPECT_FALSE(IsTabDiscarded(GetWebContentsAt(1)));
tab_manager()->DiscardTabImpl(LifecycleUnitDiscardReason::URGENT);
EXPECT_TRUE(IsTabDiscarded(GetWebContentsAt(2)));
// Force creation of the FindBarController.
browser()->GetFindBarController();
// Select the first tab. It should reload.
WindowedNotificationObserver reload1(
content::NOTIFICATION_NAV_ENTRY_COMMITTED,
base::Bind(&ObserveNavEntryCommitted,
GURL(chrome::kChromeUIChromeURLsURL)));
chrome::SelectNumberedTab(browser(), 0);
reload1.Wait();
// Make sure the FindBarController gets the right WebContents.
EXPECT_EQ(browser()->GetFindBarController()->web_contents(),
tsm()->GetActiveWebContents());
EXPECT_EQ(0, tsm()->active_index());
EXPECT_FALSE(IsTabDiscarded(GetWebContentsAt(0)));
EXPECT_FALSE(IsTabDiscarded(GetWebContentsAt(1)));
EXPECT_TRUE(IsTabDiscarded(GetWebContentsAt(2)));
// Select the third tab. It should reload.
WindowedNotificationObserver reload2(
content::NOTIFICATION_NAV_ENTRY_COMMITTED,
base::Bind(&ObserveNavEntryCommitted, GURL("chrome://dns")));
chrome::SelectNumberedTab(browser(), 2);
reload2.Wait();
EXPECT_EQ(2, tsm()->active_index());
EXPECT_FALSE(IsTabDiscarded(GetWebContentsAt(0)));
EXPECT_FALSE(IsTabDiscarded(GetWebContentsAt(1)));
EXPECT_FALSE(IsTabDiscarded(GetWebContentsAt(2)));
// Navigate the third tab back twice. We used to crash here due to
// crbug.com/121373.
EXPECT_TRUE(chrome::CanGoBack(browser()));
EXPECT_FALSE(chrome::CanGoForward(browser()));
WindowedNotificationObserver back1(
content::NOTIFICATION_NAV_ENTRY_COMMITTED,
base::Bind(&ObserveNavEntryCommitted, GURL(chrome::kChromeUIVersionURL)));
chrome::GoBack(browser(), WindowOpenDisposition::CURRENT_TAB);
back1.Wait();
EXPECT_TRUE(chrome::CanGoBack(browser()));
EXPECT_TRUE(chrome::CanGoForward(browser()));
WindowedNotificationObserver back2(
content::NOTIFICATION_NAV_ENTRY_COMMITTED,
base::Bind(&ObserveNavEntryCommitted, GURL(chrome::kChromeUITermsURL)));
chrome::GoBack(browser(), WindowOpenDisposition::CURRENT_TAB);
back2.Wait();
EXPECT_FALSE(chrome::CanGoBack(browser()));
EXPECT_TRUE(chrome::CanGoForward(browser()));
}
// On Linux, memory pressure listener is not implemented yet.
#if defined(OS_WIN) || defined(OS_MACOSX) || defined(OS_CHROMEOS)
// Test that the MemoryPressureListener event is properly triggering a tab
// discard upon |MEMORY_PRESSURE_LEVEL_CRITICAL| event.
IN_PROC_BROWSER_TEST_F(TabManagerTest, OomPressureListener) {
// Get two tabs open.
content::WindowedNotificationObserver load1(
content::NOTIFICATION_NAV_ENTRY_COMMITTED,
content::NotificationService::AllSources());
OpenURLParams open1(GURL(chrome::kChromeUIAboutURL), content::Referrer(),
WindowOpenDisposition::CURRENT_TAB,
ui::PAGE_TRANSITION_TYPED, false);
browser()->OpenURL(open1);
load1.Wait();
content::WindowedNotificationObserver load2(
content::NOTIFICATION_NAV_ENTRY_COMMITTED,
content::NotificationService::AllSources());
OpenURLParams open2(GURL(chrome::kChromeUICreditsURL), content::Referrer(),
WindowOpenDisposition::NEW_FOREGROUND_TAB,
ui::PAGE_TRANSITION_TYPED, false);
browser()->OpenURL(open2);
load2.Wait();
ASSERT_EQ(tsm()->count(), 2);
EXPECT_FALSE(IsTabDiscarded(GetWebContentsAt(0)));
EXPECT_FALSE(IsTabDiscarded(GetWebContentsAt(1)));
// Advance time so everything is urgent discardable.
test_clock_.Advance(kBackgroundUrgentProtectionTime);
// Nothing should happen with a moderate memory pressure event.
fake_memory_pressure_monitor_.SetAndNotifyMemoryPressure(
base::MemoryPressureListener::MEMORY_PRESSURE_LEVEL_MODERATE);
EXPECT_FALSE(IsTabDiscarded(GetWebContentsAt(0)));
EXPECT_FALSE(IsTabDiscarded(GetWebContentsAt(1)));
// A critical memory pressure event should discard a tab.
fake_memory_pressure_monitor_.SetAndNotifyMemoryPressure(
base::MemoryPressureListener::MEMORY_PRESSURE_LEVEL_CRITICAL);
// Coming here, an asynchronous operation will collect system stats. Once in,
// a tab should get discarded. As such we need to give it 10s time to discard.
const int kTimeoutTimeInMS = 10000;
const int kIntervalTimeInMS = 5;
int timeout = kTimeoutTimeInMS / kIntervalTimeInMS;
while (--timeout) {
base::PlatformThread::Sleep(
base::TimeDelta::FromMilliseconds(kIntervalTimeInMS));
base::RunLoop().RunUntilIdle();
if (IsTabDiscarded(GetWebContentsAt(0)))
break;
}
EXPECT_TRUE(IsTabDiscarded(GetWebContentsAt(0)));
EXPECT_FALSE(IsTabDiscarded(GetWebContentsAt(1)));
}
#endif
IN_PROC_BROWSER_TEST_F(TabManagerTest, InvalidOrEmptyURL) {
// Open two tabs. Wait for the foreground one to load but do not wait for the
// background one.
content::WindowedNotificationObserver load1(
content::NOTIFICATION_NAV_ENTRY_COMMITTED,
content::NotificationService::AllSources());
OpenURLParams open1(GURL(chrome::kChromeUIAboutURL), content::Referrer(),
WindowOpenDisposition::CURRENT_TAB,
ui::PAGE_TRANSITION_TYPED, false);
browser()->OpenURL(open1);
load1.Wait();
content::WindowedNotificationObserver load2(
content::NOTIFICATION_NAV_ENTRY_COMMITTED,
content::NotificationService::AllSources());
OpenURLParams open2(GURL(chrome::kChromeUICreditsURL), content::Referrer(),
WindowOpenDisposition::NEW_BACKGROUND_TAB,
ui::PAGE_TRANSITION_TYPED, false);
browser()->OpenURL(open2);
ASSERT_EQ(2, tsm()->count());
// This shouldn't be able to discard a tab as the background tab has not yet
// started loading (its URL is not committed).
EXPECT_FALSE(
tab_manager()->DiscardTabImpl(LifecycleUnitDiscardReason::PROACTIVE));
// Wait for the background tab to load which then allows it to be discarded.
load2.Wait();
EXPECT_TRUE(
tab_manager()->DiscardTabImpl(LifecycleUnitDiscardReason::PROACTIVE));
}
// Makes sure that PDF pages are protected.
IN_PROC_BROWSER_TEST_F(TabManagerTest, ProtectPDFPages) {
// Start the embedded test server so we can get served the required PDF page.
ASSERT_TRUE(embedded_test_server()->InitializeAndListen());
embedded_test_server()->StartAcceptingConnections();
// Get two tabs open, the first one being a PDF page and the second one being
// the foreground tab.
GURL url1 = embedded_test_server()->GetURL("/pdf/test.pdf");
ui_test_utils::NavigateToURL(browser(), url1);
GURL url2(chrome::kChromeUIAboutURL);
ui_test_utils::NavigateToURLWithDisposition(
browser(), url2, WindowOpenDisposition::NEW_FOREGROUND_TAB,
ui_test_utils::BROWSER_TEST_WAIT_FOR_NAVIGATION);
// No discarding should be possible as the only background tab is displaying a
// PDF page, hence protected.
EXPECT_FALSE(
tab_manager()->DiscardTabImpl(LifecycleUnitDiscardReason::PROACTIVE));
}
#if !defined(OS_CHROMEOS)
// Makes sure that recently opened or used tabs are protected.
IN_PROC_BROWSER_TEST_F(TabManagerTest,
ProtectRecentlyUsedTabsFromUrgentDiscarding) {
TabManager* tab_manager = g_browser_process->GetTabManager();
auto* tsm = browser()->tab_strip_model();
// Open 2 tabs, the second one being in the background.
ui_test_utils::NavigateToURL(browser(), GURL(chrome::kChromeUIAboutURL));
ui_test_utils::NavigateToURLWithDisposition(
browser(), GURL(chrome::kChromeUIAboutURL),
WindowOpenDisposition::NEW_BACKGROUND_TAB,
ui_test_utils::BROWSER_TEST_WAIT_FOR_NAVIGATION);
EXPECT_EQ(2, tsm->count());
// Advance the clock for less than the protection time.
test_clock_.Advance(kBackgroundUrgentProtectionTime / 2);
// Should not be able to discard a tab.
ASSERT_FALSE(tab_manager->DiscardTabImpl(LifecycleUnitDiscardReason::URGENT));
// Advance the clock for more than the protection time.
test_clock_.Advance(kBackgroundUrgentProtectionTime / 2 +
base::TimeDelta::FromSeconds(1));
// Should be able to discard the background tab now.
EXPECT_TRUE(tab_manager->DiscardTabImpl(LifecycleUnitDiscardReason::URGENT));
// Activate the 2nd tab.
tsm->ActivateTabAt(1, true);
EXPECT_EQ(1, tsm->active_index());
// Advance the clock for less than the protection time.
test_clock_.Advance(kBackgroundUrgentProtectionTime / 2);
// Should not be able to urgent discard the tab.
ASSERT_FALSE(tab_manager->DiscardTabImpl(LifecycleUnitDiscardReason::URGENT));
// But should be able to proactive discard the tab.
EXPECT_TRUE(
tab_manager->DiscardTabImpl(LifecycleUnitDiscardReason::PROACTIVE));
// This is necessary otherwise the test crashes in
// WebContentsData::WebContentsDestroyed.
tsm->CloseAllTabs();
}
#endif // !defined(OS_CHROMEOS)
// Makes sure that tabs using media devices are protected.
IN_PROC_BROWSER_TEST_F(TabManagerTest, ProtectVideoTabs) {
// Open 2 tabs, the second one being in the background.
ui_test_utils::NavigateToURL(browser(), GURL(chrome::kChromeUIAboutURL));
ui_test_utils::NavigateToURLWithDisposition(
browser(), GURL(chrome::kChromeUIAboutURL),
WindowOpenDisposition::NEW_BACKGROUND_TAB,
ui_test_utils::BROWSER_TEST_WAIT_FOR_NAVIGATION);
auto* tab = GetWebContentsAt(1);
// Simulate that a video stream is now being captured.
content::MediaStreamDevices video_devices(1);
video_devices[0] =
content::MediaStreamDevice(content::MEDIA_DEVICE_VIDEO_CAPTURE,
"fake_media_device", "fake_media_device");
MediaCaptureDevicesDispatcher* dispatcher =
MediaCaptureDevicesDispatcher::GetInstance();
dispatcher->SetTestVideoCaptureDevices(video_devices);
std::unique_ptr<content::MediaStreamUI> video_stream_ui =
dispatcher->GetMediaStreamCaptureIndicator()->RegisterMediaStream(
tab, video_devices);
video_stream_ui->OnStarted(base::Closure());
// Should not be able to discard a tab.
ASSERT_FALSE(
tab_manager()->DiscardTabImpl(LifecycleUnitDiscardReason::PROACTIVE));
// Remove the video stream.
video_stream_ui.reset();
// Should be able to discard the background tab now.
EXPECT_TRUE(
tab_manager()->DiscardTabImpl(LifecycleUnitDiscardReason::PROACTIVE));
}
// Makes sure that tabs using DevTools are protected from discarding.
IN_PROC_BROWSER_TEST_F(TabManagerTest, ProtectDevToolsTabsFromDiscarding) {
// Get two tabs open, the second one being the foreground tab.
GURL test_page(ui_test_utils::GetTestUrl(
base::FilePath(), base::FilePath(FILE_PATH_LITERAL("simple.html"))));
ui_test_utils::NavigateToURL(browser(), test_page);
// Open a DevTools window for the first.
DevToolsWindow* devtool = DevToolsWindowTesting::OpenDevToolsWindowSync(
GetWebContentsAt(0), true /* is_docked */);
EXPECT_TRUE(devtool);
GURL url2(chrome::kChromeUIAboutURL);
ui_test_utils::NavigateToURLWithDisposition(
browser(), GURL(chrome::kChromeUIAboutURL),
WindowOpenDisposition::NEW_FOREGROUND_TAB,
ui_test_utils::BROWSER_TEST_WAIT_FOR_NAVIGATION);
// No discarding should be possible as the only background tab is currently
// using DevTools.
EXPECT_FALSE(
tab_manager()->DiscardTabImpl(LifecycleUnitDiscardReason::PROACTIVE));
// Close the DevTools window and repeat the test, this time use a non-docked
// window.
DevToolsWindowTesting::CloseDevToolsWindowSync(devtool);
devtool = DevToolsWindowTesting::OpenDevToolsWindowSync(
GetWebContentsAt(0), false /* is_docked */);
EXPECT_TRUE(devtool);
EXPECT_FALSE(
tab_manager()->DiscardTabImpl(LifecycleUnitDiscardReason::PROACTIVE));
// TODO(sebmarchand): Also ensure that the tab can't be frozen.
// Close the DevTools window, ensure that the tab can be discarded.
DevToolsWindowTesting::CloseDevToolsWindowSync(devtool);
EXPECT_TRUE(
tab_manager()->DiscardTabImpl(LifecycleUnitDiscardReason::PROACTIVE));
}
IN_PROC_BROWSER_TEST_F(TabManagerTest, CanPurgeBackgroundedRenderer) {
// Open 2 tabs, the second one being in the background.
ui_test_utils::NavigateToURL(browser(), GURL(chrome::kChromeUIAboutURL));
ui_test_utils::NavigateToURLWithDisposition(
browser(), GURL(chrome::kChromeUIAboutURL),
WindowOpenDisposition::NEW_BACKGROUND_TAB,
ui_test_utils::BROWSER_TEST_WAIT_FOR_NAVIGATION);
auto* tab = GetWebContentsAt(1);
// Simulate that a video stream is now being captured.
content::MediaStreamDevices video_devices(1);
video_devices[0] =
content::MediaStreamDevice(content::MEDIA_DEVICE_VIDEO_CAPTURE,
"fake_media_device", "fake_media_device");
MediaCaptureDevicesDispatcher* dispatcher =
MediaCaptureDevicesDispatcher::GetInstance();
dispatcher->SetTestVideoCaptureDevices(video_devices);
std::unique_ptr<content::MediaStreamUI> video_stream_ui =
dispatcher->GetMediaStreamCaptureIndicator()->RegisterMediaStream(
tab, video_devices);
video_stream_ui->OnStarted(base::Closure());
// Should not be able to suspend a tab which plays a video.
int render_process_id = tab->GetMainFrame()->GetProcess()->GetID();
ASSERT_FALSE(tab_manager()->CanPurgeBackgroundedRenderer(render_process_id));
// Remove the video stream.
video_stream_ui.reset();
// Should be able to suspend the background tab now.
EXPECT_TRUE(tab_manager()->CanPurgeBackgroundedRenderer(render_process_id));
}
IN_PROC_BROWSER_TEST_F(TabManagerTest, AutoDiscardable) {
using content::WindowedNotificationObserver;
// Get two tabs open.
WindowedNotificationObserver load1(
content::NOTIFICATION_NAV_ENTRY_COMMITTED,
content::NotificationService::AllSources());
OpenURLParams open1(GURL(chrome::kChromeUIAboutURL), content::Referrer(),
WindowOpenDisposition::CURRENT_TAB,
ui::PAGE_TRANSITION_TYPED, false);
browser()->OpenURL(open1);
load1.Wait();
WindowedNotificationObserver load2(
content::NOTIFICATION_NAV_ENTRY_COMMITTED,
content::NotificationService::AllSources());
OpenURLParams open2(GURL(chrome::kChromeUICreditsURL), content::Referrer(),
WindowOpenDisposition::NEW_FOREGROUND_TAB,
ui::PAGE_TRANSITION_TYPED, false);
browser()->OpenURL(open2);
load2.Wait();
ASSERT_EQ(2, tsm()->count());
// Set the auto-discardable state of the first tab to false.
TabLifecycleUnitExternal::FromWebContents(GetWebContentsAt(0))
->SetAutoDiscardable(false);
// Shouldn't discard the tab, since auto-discardable is deactivated.
EXPECT_FALSE(
tab_manager()->DiscardTabImpl(LifecycleUnitDiscardReason::PROACTIVE));
// Reset auto-discardable state to true.
TabLifecycleUnitExternal::FromWebContents(GetWebContentsAt(0))
->SetAutoDiscardable(true);
// Now it should be able to discard the tab.
EXPECT_TRUE(
tab_manager()->DiscardTabImpl(LifecycleUnitDiscardReason::PROACTIVE));
EXPECT_TRUE(IsTabDiscarded(GetWebContentsAt(0)));
}
IN_PROC_BROWSER_TEST_F(TabManagerTest, PurgeBackgroundRenderer) {
// Get three tabs open.
content::WindowedNotificationObserver load1(
content::NOTIFICATION_NAV_ENTRY_COMMITTED,
content::NotificationService::AllSources());
OpenURLParams open1(GURL(chrome::kChromeUIAboutURL), content::Referrer(),
WindowOpenDisposition::CURRENT_TAB,
ui::PAGE_TRANSITION_TYPED, false);
browser()->OpenURL(open1);
load1.Wait();
content::WindowedNotificationObserver load2(
content::NOTIFICATION_NAV_ENTRY_COMMITTED,
content::NotificationService::AllSources());
OpenURLParams open2(GURL(chrome::kChromeUICreditsURL), content::Referrer(),
WindowOpenDisposition::NEW_FOREGROUND_TAB,
ui::PAGE_TRANSITION_TYPED, false);
browser()->OpenURL(open2);
load2.Wait();
content::WindowedNotificationObserver load3(
content::NOTIFICATION_NAV_ENTRY_COMMITTED,
content::NotificationService::AllSources());
OpenURLParams open3(GURL(chrome::kChromeUITermsURL), content::Referrer(),
WindowOpenDisposition::NEW_FOREGROUND_TAB,
ui::PAGE_TRANSITION_TYPED, false);
browser()->OpenURL(open3);
load3.Wait();
TabManager::WebContentsData* tab1_contents_data =
tab_manager()->GetWebContentsData(GetWebContentsAt(0));
TabManager::WebContentsData* tab2_contents_data =
tab_manager()->GetWebContentsData(GetWebContentsAt(1));
TabManager::WebContentsData* tab3_contents_data =
tab_manager()->GetWebContentsData(GetWebContentsAt(2));
// The time-to-purge initialized at ActiveTabChanged should be in the
// right default range.
EXPECT_GE(tab1_contents_data->time_to_purge(),
base::TimeDelta::FromMinutes(1));
EXPECT_LE(tab1_contents_data->time_to_purge(),
base::TimeDelta::FromMinutes(4));
EXPECT_GE(tab2_contents_data->time_to_purge(),
base::TimeDelta::FromMinutes(1));
EXPECT_LE(tab2_contents_data->time_to_purge(),
base::TimeDelta::FromMinutes(4));
EXPECT_GE(tab3_contents_data->time_to_purge(),
base::TimeDelta::FromMinutes(30));
EXPECT_LE(tab3_contents_data->time_to_purge(),
base::TimeDelta::FromMinutes(60));
// To make it easy to test, configure time-to-purge here.
base::TimeDelta time_to_purge1 = base::TimeDelta::FromMinutes(30);
base::TimeDelta time_to_purge2 = base::TimeDelta::FromMinutes(40);
tab1_contents_data->set_time_to_purge(time_to_purge1);
tab2_contents_data->set_time_to_purge(time_to_purge2);
tab3_contents_data->set_time_to_purge(time_to_purge1);
// No tabs are not purged yet.
ASSERT_FALSE(tab1_contents_data->is_purged());
ASSERT_FALSE(tab2_contents_data->is_purged());
ASSERT_FALSE(tab3_contents_data->is_purged());
// Advance the clock for time_to_purge1.
test_clock_.Advance(time_to_purge1);
tab_manager()->PurgeBackgroundedTabsIfNeeded();
ASSERT_FALSE(tab1_contents_data->is_purged());
ASSERT_FALSE(tab2_contents_data->is_purged());
ASSERT_FALSE(tab3_contents_data->is_purged());
// Advance the clock for 1 minutes.
test_clock_.Advance(base::TimeDelta::FromMinutes(1));
tab_manager()->PurgeBackgroundedTabsIfNeeded();
// Since tab1 is kept inactive and background for more than
// time_to_purge1, tab1 should be purged.
ASSERT_TRUE(tab1_contents_data->is_purged());
ASSERT_FALSE(tab2_contents_data->is_purged());
ASSERT_FALSE(tab3_contents_data->is_purged());
// Advance the clock.
test_clock_.Advance(time_to_purge2 - time_to_purge1);
tab_manager()->PurgeBackgroundedTabsIfNeeded();
// Since tab2 is kept inactive and background for more than
// time_to_purge2, tab1 should be purged.
// Since tab3 is active, tab3 should not be purged.
ASSERT_TRUE(tab1_contents_data->is_purged());
ASSERT_TRUE(tab2_contents_data->is_purged());
ASSERT_FALSE(tab3_contents_data->is_purged());
tsm()->CloseAllTabs();
}
IN_PROC_BROWSER_TEST_F(TabManagerTestWithTwoTabs,
ProactiveFastShutdownSingleTabProcess) {
// The Tab Manager should be able to fast-kill a process for the discarded tab
// on all platforms, as each tab will be running in a separate process by
// itself regardless of the discard reason.
content::WindowedNotificationObserver observer(
content::NOTIFICATION_RENDERER_PROCESS_CLOSED,
content::NotificationService::AllSources());
base::HistogramTester tester;
EXPECT_TRUE(
tab_manager()->DiscardTabImpl(LifecycleUnitDiscardReason::PROACTIVE));
SimulateFreezeSignal(GetWebContentsAt(1));
tester.ExpectUniqueSample(
"TabManager.Discarding.DiscardedTabCouldFastShutdown", true, 1);
observer.Wait();
}
IN_PROC_BROWSER_TEST_F(TabManagerTestWithTwoTabs,
UrgentFastShutdownSingleTabProcess) {
// The Tab Manager should be able to fast-kill a process for the discarded tab
// on all platforms, as each tab will be running in a separate process by
// itself regardless of the discard reason.
content::WindowedNotificationObserver observer(
content::NOTIFICATION_RENDERER_PROCESS_CLOSED,
content::NotificationService::AllSources());
// Advance time so everything is urgent discardable.
test_clock_.Advance(kBackgroundUrgentProtectionTime);
base::HistogramTester tester;
EXPECT_TRUE(
tab_manager()->DiscardTabImpl(LifecycleUnitDiscardReason::URGENT));
tester.ExpectUniqueSample(
"TabManager.Discarding.DiscardedTabCouldFastShutdown", true, 1);
observer.Wait();
}
IN_PROC_BROWSER_TEST_F(TabManagerTest, ProactiveFastShutdownSharedTabProcess) {
ASSERT_TRUE(embedded_test_server()->Start());
// Set max renderers to 1 before opening tabs to force running out of
// processes and for both these tabs to share a renderer.
content::RenderProcessHost::SetMaxRendererProcessCount(1);
OpenTwoTabs(embedded_test_server()->GetURL("a.com", "/title1.html"),
embedded_test_server()->GetURL("a.com", "/title2.html"));
EXPECT_EQ(tsm()->GetWebContentsAt(0)->GetMainFrame()->GetProcess(),
tsm()->GetWebContentsAt(1)->GetMainFrame()->GetProcess());
// The Tab Manager will not be able to fast-kill either of the tabs since they
// share the same process regardless of the discard reason. No unsafe attempts
// will be made.
base::HistogramTester tester;
EXPECT_TRUE(
tab_manager()->DiscardTabImpl(LifecycleUnitDiscardReason::PROACTIVE));
SimulateFreezeSignal(GetWebContentsAt(1));
tester.ExpectUniqueSample(
"TabManager.Discarding.DiscardedTabCouldFastShutdown", false, 1);
}
IN_PROC_BROWSER_TEST_F(TabManagerTest, UrgentFastShutdownSharedTabProcess) {
ASSERT_TRUE(embedded_test_server()->Start());
// Set max renderers to 1 before opening tabs to force running out of
// processes and for both these tabs to share a renderer.
content::RenderProcessHost::SetMaxRendererProcessCount(1);
OpenTwoTabs(embedded_test_server()->GetURL("a.com", "/title1.html"),
embedded_test_server()->GetURL("a.com", "/title2.html"));
EXPECT_EQ(tsm()->GetWebContentsAt(0)->GetMainFrame()->GetProcess(),
tsm()->GetWebContentsAt(1)->GetMainFrame()->GetProcess());
// Advance time so everything is urgent discardable.
test_clock_.Advance(kBackgroundUrgentProtectionTime);
// The Tab Manager will not be able to fast-kill either of the tabs since they
// share the same process regardless of the discard reason. An unsafe attempt
// will be made on some platforms.
base::HistogramTester tester;
EXPECT_TRUE(
tab_manager()->DiscardTabImpl(LifecycleUnitDiscardReason::URGENT));
#ifdef OS_CHROMEOS
// The unsafe killing attempt will fail for the same reason.
tester.ExpectUniqueSample(
"TabManager.Discarding.DiscardedTabCouldUnsafeFastShutdown", false, 1);
#endif // OS_CHROMEOS
tester.ExpectUniqueSample(
"TabManager.Discarding.DiscardedTabCouldFastShutdown", false, 1);
}
IN_PROC_BROWSER_TEST_F(TabManagerTest,
DISABLED_ProactiveFastShutdownWithUnloadHandler) {
ASSERT_TRUE(embedded_test_server()->Start());
// Disable the protection of recent tabs.
OpenTwoTabs(GURL(chrome::kChromeUIAboutURL),
GURL(embedded_test_server()->GetURL("/unload.html")));
// Advance time so everything is urgent discardable.
test_clock_.Advance(kBackgroundUrgentProtectionTime);
base::HistogramTester tester;
// The Tab Manager will not be able to safely fast-kill either of the tabs as
// one of them is current, and the other has an unload handler. No unsafe
// attempts will be made.
EXPECT_TRUE(
tab_manager()->DiscardTabImpl(LifecycleUnitDiscardReason::PROACTIVE));
SimulateFreezeSignal(GetWebContentsAt(1));
tester.ExpectUniqueSample(
"TabManager.Discarding.DiscardedTabCouldFastShutdown", false, 1);
}
IN_PROC_BROWSER_TEST_F(TabManagerTest, UrgentFastShutdownWithUnloadHandler) {
ASSERT_TRUE(embedded_test_server()->Start());
// Disable the protection of recent tabs.
OpenTwoTabs(GURL(chrome::kChromeUIAboutURL),
GURL(embedded_test_server()->GetURL("/unload.html")));
// Advance time so everything is urgent discardable.
test_clock_.Advance(kBackgroundUrgentProtectionTime);
// The Tab Manager will not be able to safely fast-kill either of the tabs as
// one of them is current, and the other has an unload handler. An unsafe
// attempt will be made on some platforms.
base::HistogramTester tester;
#ifdef OS_CHROMEOS
// The unsafe attempt for ChromeOS should succeed as ChromeOS ignores unload
// handlers when in critical condition.
content::WindowedNotificationObserver observer(
content::NOTIFICATION_RENDERER_PROCESS_CLOSED,
content::NotificationService::AllSources());
#endif // OS_CHROMEOS
EXPECT_TRUE(
tab_manager()->DiscardTabImpl(LifecycleUnitDiscardReason::URGENT));
#ifdef OS_CHROMEOS
tester.ExpectUniqueSample(
"TabManager.Discarding.DiscardedTabCouldUnsafeFastShutdown", true, 1);
tester.ExpectUniqueSample(
"TabManager.Discarding.DiscardedTabCouldFastShutdown", true, 1);
observer.Wait();
#else
tester.ExpectUniqueSample(
"TabManager.Discarding.DiscardedTabCouldFastShutdown", false, 1);
#endif // OS_CHROMEOS
}
// https://crbug.com/874915, flaky on all platform
IN_PROC_BROWSER_TEST_F(TabManagerTest,
DISABLED_ProactiveFastShutdownWithBeforeunloadHandler) {
ASSERT_TRUE(embedded_test_server()->Start());
// Disable the protection of recent tabs.
OpenTwoTabs(GURL(chrome::kChromeUIAboutURL),
GURL(embedded_test_server()->GetURL("/beforeunload.html")));
// Advance time so everything is urgent discardable.
test_clock_.Advance(kBackgroundUrgentProtectionTime);
// The Tab Manager will not be able to safely fast-kill either of the tabs as
// one of them is current, and the other has a beforeunload handler. No unsafe
// attempts will be made.
base::HistogramTester tester;
EXPECT_TRUE(
tab_manager()->DiscardTabImpl(LifecycleUnitDiscardReason::PROACTIVE));
SimulateFreezeSignal(GetWebContentsAt(1));
tester.ExpectUniqueSample(
"TabManager.Discarding.DiscardedTabCouldFastShutdown", false, 1);
}
IN_PROC_BROWSER_TEST_F(TabManagerTest,
UrgentFastShutdownWithBeforeunloadHandler) {
ASSERT_TRUE(embedded_test_server()->Start());
// Disable the protection of recent tabs.
OpenTwoTabs(GURL(chrome::kChromeUIAboutURL),
GURL(embedded_test_server()->GetURL("/beforeunload.html")));
// Advance time so everything is urgent discardable.
test_clock_.Advance(kBackgroundUrgentProtectionTime);
// The Tab Manager will not be able to safely fast-kill either of the tabs as
// one of them is current, and the other has a beforeunload handler. An unsafe
// attempt will be made on some platforms.
base::HistogramTester tester;
EXPECT_TRUE(
tab_manager()->DiscardTabImpl(LifecycleUnitDiscardReason::URGENT));
#ifdef OS_CHROMEOS
// The unsafe killing attempt will fail as ChromeOS does not ignore
// beforeunload handlers.
tester.ExpectUniqueSample(
"TabManager.Discarding.DiscardedTabCouldUnsafeFastShutdown", false, 1);
#endif // OS_CHROMEOS
tester.ExpectUniqueSample(
"TabManager.Discarding.DiscardedTabCouldFastShutdown", false, 1);
}
// Verifies the following state transitions for a tab:
// - Initial state: ACTIVE
// - Freeze(): ACTIVE->PENDING_FREEZE
// - Freeze happens in renderer: PENDING_FREEZE->FROZEN
// - Tab is made visible: FROZEN->ACTIVE
IN_PROC_BROWSER_TEST_F(TabManagerTest, TabFreezeAndMakeVisible) {
TestTransitionFromActiveToFrozen();
// Make the tab visible. It should transition to the ACTIVE state.
GetWebContentsAt(1)->WasShown();
{
ExpectStateTransitionObserver expect_state_transition(
GetLifecycleUnitAt(1), LifecycleUnitState::ACTIVE);
expect_state_transition.Wait();
}
}
// Verifies the following state transitions for a tab:
// - Initial state: ACTIVE
// - Freeze(): ACTIVE->PENDING_FREEZE
// - Freeze happens in renderer: PENDING_FREEZE->FROZEN
// - Unfreeze(): FROZEN->ACTIVE
IN_PROC_BROWSER_TEST_F(TabManagerTest, TabFreezeAndUnfreeze) {
TestTransitionFromActiveToFrozen();
// Unfreeze the tab. It should immediately transition to the PENDING_FREEZE
// state. Then, it shuold transition to the ACTIVE state once the "onresume"
// callback has run.
EXPECT_TRUE(GetLifecycleUnitAt(1)->Unfreeze());
EXPECT_EQ(LifecycleUnitState::PENDING_UNFREEZE,
GetLifecycleUnitAt(1)->GetState());
{
ExpectStateTransitionObserver expect_state_transition(
GetLifecycleUnitAt(1), LifecycleUnitState::ACTIVE);
expect_state_transition.Wait();
}
}
// Verifies the following state transitions for a tab:
// - Initial state: ACTIVE
// - Freeze(): ACTIVE->PENDING_FREEZE
// - Unfreeze(): PENDING_FREEZE->FROZEN
IN_PROC_BROWSER_TEST_F(TabManagerTest, TabPendingFreezeAndUnfreeze) {
TestTransitionFromActiveToPendingFreeze();
EXPECT_EQ(LifecycleUnitState::PENDING_FREEZE,
GetLifecycleUnitAt(1)->GetState());
{
ExpectStateTransitionObserver expect_state_transition(
GetLifecycleUnitAt(1), LifecycleUnitState::FROZEN);
expect_state_transition.Wait();
}
}
// Verifies the following state transitions for a tab:
// - Initial state: ACTIVE
// - Freeze(): ACTIVE->PENDING_FREEZE
// - Discard(kProactive): PENDING_FREEZE->PENDING_DISCARD
// - Freeze happens in renderer: PENDING_DISCARD->DISCARDED
IN_PROC_BROWSER_TEST_F(TabManagerTest,
TabFreezeAndProactiveDiscardBeforeFreezeCompletes) {
TestTransitionFromActiveToPendingFreeze();
// Proactively discard the background tab.
EXPECT_TRUE(
GetLifecycleUnitAt(1)->Discard(LifecycleUnitDiscardReason::PROACTIVE));
EXPECT_EQ(LifecycleUnitState::PENDING_DISCARD,
GetLifecycleUnitAt(1)->GetState());
// The tab should transition to DISCARDED after the renderer freezes the page.
ExpectStateTransitionObserver expect_state_transition(
GetLifecycleUnitAt(1), LifecycleUnitState::DISCARDED);
expect_state_transition.Wait();
}
// Verifies the following state transitions for a tab:
// - Initial state: ACTIVE
// - Freeze(): ACTIVE->PENDING_FREEZE
// - Discard(kUrgent): PENDING_FREEZE->DISCARDED
IN_PROC_BROWSER_TEST_F(TabManagerTestWithTwoTabs,
TabFreezeAndUrgentDiscardBeforeFreezeCompletes) {
// Advance time so everything is urgent discardable.
test_clock_.Advance(kBackgroundUrgentProtectionTime);
// Freeze the background tab.
EXPECT_EQ(LifecycleUnitState::ACTIVE, GetLifecycleUnitAt(1)->GetState());
EXPECT_TRUE(GetLifecycleUnitAt(1)->Freeze());
EXPECT_EQ(LifecycleUnitState::PENDING_FREEZE,
GetLifecycleUnitAt(1)->GetState());
// Urgently discard the background tab.
EXPECT_TRUE(
GetLifecycleUnitAt(1)->Discard(LifecycleUnitDiscardReason::URGENT));
EXPECT_EQ(LifecycleUnitState::DISCARDED, GetLifecycleUnitAt(1)->GetState());
}
// Verifies the following state transitions for a tab:
// - Initial state: ACTIVE
// - Freeze(): ACTIVE->PENDING_FREEZE
// - Freeze happens in renderer: PENDING_FREEZE->FROZEN
// - Discard(kUrgent): FROZEN->DISCARDED
IN_PROC_BROWSER_TEST_F(TabManagerTest, TabFreezeAndUrgentDiscard) {
// Advance time so everything is urgent discardable.
test_clock_.Advance(kBackgroundUrgentProtectionTime);
TestTransitionFromActiveToFrozen();
// Urgently discard the background tab.
EXPECT_TRUE(
GetLifecycleUnitAt(1)->Discard(LifecycleUnitDiscardReason::URGENT));
EXPECT_EQ(LifecycleUnitState::DISCARDED, GetLifecycleUnitAt(1)->GetState());
}
// Verifies the following state transitions for a tab:
// - Initial state: ACTIVE
// - Discard(kProactive): ACTIVE->PENDING_DISCARD
// - Focus: PENDING_DISCARD->PENDING_FREEZE
// - (optional) Freeze happens in renderer: PENDING_FREEZE->FROZEN
// - Renderer is notified of new visibility: PENDING_FREEZE->ACTIVE or
// FROZEN->ACTIVE.
IN_PROC_BROWSER_TEST_F(TabManagerTestWithTwoTabs,
TabProactiveDiscardAndFocusBeforeFreezeCompletes) {
// Proactively discard the background tab.
EXPECT_EQ(LifecycleUnitState::ACTIVE, GetLifecycleUnitAt(1)->GetState());
EXPECT_TRUE(
GetLifecycleUnitAt(1)->Discard(LifecycleUnitDiscardReason::PROACTIVE));
EXPECT_EQ(LifecycleUnitState::PENDING_DISCARD,
GetLifecycleUnitAt(1)->GetState());
// Focus and make visible the background tab. It should transition to
// PENDING_FREEZE, to indicate that there is a freeze on its way to the
// renderer but that no discard should happen if the renderer freezes the page
// before being notified that it became visible.
tsm()->ActivateTabAt(1, true);
GetWebContentsAt(1)->WasShown();
EXPECT_EQ(LifecycleUnitState::PENDING_FREEZE,
GetLifecycleUnitAt(1)->GetState());
// The tab should eventually transition to ACTIVE. If the renderer freezes the
// page before being notified that the tab became visible, there could be an
// intermediate transition to FROZEN.
ExpectStateTransitionObserver expect_state_transition(
GetLifecycleUnitAt(1), LifecycleUnitState::ACTIVE);
expect_state_transition.AllowState(LifecycleUnitState::FROZEN);
expect_state_transition.Wait();
}
// Verifies the following state transitions for a tab:
// - Initial state: ACTIVE
// - Discard(kProactive): ACTIVE->PENDING_DISCARD
// - Freeze happens in renderer: PENDING_DISCARD->DISCARDED
// - Focus: DISCARDED->ACTIVE
IN_PROC_BROWSER_TEST_F(TabManagerTestWithTwoTabs,
TabProactiveDiscardAndFocusToReload) {
// Proactively discard the background tab.
EXPECT_EQ(LifecycleUnitState::ACTIVE, GetLifecycleUnitAt(1)->GetState());
EXPECT_TRUE(
GetLifecycleUnitAt(1)->Discard(LifecycleUnitDiscardReason::PROACTIVE));
EXPECT_EQ(LifecycleUnitState::PENDING_DISCARD,
GetLifecycleUnitAt(1)->GetState());
// After the freeze happens in the renderer, the tab is discarded.
{
ExpectStateTransitionObserver expect_state_transition(
GetLifecycleUnitAt(1), LifecycleUnitState::DISCARDED);
expect_state_transition.Wait();
}
// When the tab is focused and made visible, it transitions to ACTIVE.
tsm()->ActivateTabAt(1, true);
GetWebContentsAt(1)->WasShown();
EXPECT_EQ(LifecycleUnitState::ACTIVE, GetLifecycleUnitAt(1)->GetState());
}
// Verifies the following state transitions for a tab:
// - Initial state: ACTIVE
// - Discard(kProactive): ACTIVE->PENDING_DISCARD
// - Freeze(): Disallowed
// - Freeze happens in renderer: PENDING_DISCARD->DISCARDED
IN_PROC_BROWSER_TEST_F(TabManagerTestWithTwoTabs,
TabFreezeDisallowedWhenProactivelyDiscarding) {
// Proactively discard the background tab.
EXPECT_EQ(LifecycleUnitState::ACTIVE, GetLifecycleUnitAt(1)->GetState());
EXPECT_TRUE(
GetLifecycleUnitAt(1)->Discard(LifecycleUnitDiscardReason::PROACTIVE));
EXPECT_EQ(LifecycleUnitState::PENDING_DISCARD,
GetLifecycleUnitAt(1)->GetState());
// Freezing the tab should be disallowed.
DecisionDetails decision_details;
EXPECT_FALSE(GetLifecycleUnitAt(1)->CanFreeze(&decision_details));
EXPECT_FALSE(GetLifecycleUnitAt(1)->Freeze());
EXPECT_EQ(LifecycleUnitState::PENDING_DISCARD,
GetLifecycleUnitAt(1)->GetState());
// The tab should eventually transition to DISCARDED.
ExpectStateTransitionObserver expect_state_transition(
GetLifecycleUnitAt(1), LifecycleUnitState::DISCARDED);
expect_state_transition.Wait();
}
// Verifies the following state transitions for a tab:
// - Initial state: ACTIVE
// - Discard(kUrgent): ACTIVE->DISCARDED
// - Navigate: DISCARDED->ACTIVE
// window.document.wasDiscarded is true
IN_PROC_BROWSER_TEST_F(TabManagerTestWithTwoTabs, TabUrgentDiscardAndNavigate) {
const char kDiscardedStateJS[] =
"window.domAutomationController.send("
"window.document.wasDiscarded);";
GURL test_page(ui_test_utils::GetTestUrl(
base::FilePath(), base::FilePath(FILE_PATH_LITERAL("simple.html"))));
ui_test_utils::NavigateToURL(browser(), test_page);
// document.wasDiscarded is false initially.
bool not_discarded_result;
EXPECT_TRUE(content::ExecuteScriptAndExtractBool(
GetWebContentsAt(0), kDiscardedStateJS, &not_discarded_result));
EXPECT_FALSE(not_discarded_result);
// Discard the tab.
EXPECT_EQ(LifecycleUnitState::ACTIVE, GetLifecycleUnitAt(0)->GetState());
EXPECT_TRUE(
GetLifecycleUnitAt(0)->Discard(LifecycleUnitDiscardReason::EXTERNAL));
EXPECT_EQ(LifecycleUnitState::DISCARDED, GetLifecycleUnitAt(0)->GetState());
// Here we simulate re-focussing the tab causing reload with navigation,
// the navigation will reload the tab.
// TODO(fdoray): Figure out why the test fails if a reload is done instead of
// a navigation.
ui_test_utils::NavigateToURL(browser(), test_page);
EXPECT_EQ(LifecycleUnitState::ACTIVE, GetLifecycleUnitAt(0)->GetState());
// document.wasDiscarded is true on navigate after discard.
bool discarded_result;
EXPECT_TRUE(content::ExecuteScriptAndExtractBool(
GetWebContentsAt(0), kDiscardedStateJS, &discarded_result));
EXPECT_TRUE(discarded_result);
}
IN_PROC_BROWSER_TEST_F(TabManagerTest, DiscardedTabHasNoProcess) {
GURL test_page(ui_test_utils::GetTestUrl(
base::FilePath(), base::FilePath(FILE_PATH_LITERAL("simple.html"))));
ui_test_utils::NavigateToURL(browser(), test_page);
content::WebContents* web_contents = tsm()->GetActiveWebContents();
// The renderer process should be alive at this point.
content::RenderProcessHost* process =
web_contents->GetMainFrame()->GetProcess();
ASSERT_TRUE(process);
EXPECT_TRUE(process->IsInitializedAndNotDead());
EXPECT_NE(base::kNullProcessHandle, process->GetProcess().Handle());
int renderer_id = process->GetID();
// Discard the tab. This simulates a tab discard.
TabLifecycleUnitExternal::FromWebContents(web_contents)->DiscardTab();
content::WebContents* new_web_contents = tsm()->GetActiveWebContents();
EXPECT_NE(new_web_contents, web_contents);
web_contents = new_web_contents;
content::RenderProcessHost* new_process =
web_contents->GetMainFrame()->GetProcess();
EXPECT_NE(new_process, process);
EXPECT_NE(new_process->GetID(), renderer_id);
process = new_process;
// The renderer process should be dead after a discard.
EXPECT_EQ(process, web_contents->GetMainFrame()->GetProcess());
EXPECT_FALSE(process->IsInitializedAndNotDead());
EXPECT_EQ(base::kNullProcessHandle, process->GetProcess().Handle());
// Here we simulate re-focussing the tab causing reload with navigation,
// the navigation will reload the tab.
ui_test_utils::NavigateToURL(browser(), test_page);
// Reload should mean that the renderer process is alive now.
EXPECT_EQ(process, web_contents->GetMainFrame()->GetProcess());
EXPECT_TRUE(process->IsInitializedAndNotDead());
EXPECT_NE(base::kNullProcessHandle, process->GetProcess().Handle());
}
IN_PROC_BROWSER_TEST_F(TabManagerTest,
TabManagerWasDiscardedCrossSiteSubFrame) {
const char kDiscardedStateJS[] =
"window.domAutomationController.send("
"window.document.wasDiscarded);";
// Navigate to a page with a cross-site frame.
content::SetupCrossSiteRedirector(embedded_test_server());
ASSERT_TRUE(embedded_test_server()->Start());
GURL main_url(
embedded_test_server()->GetURL("a.com", "/iframe_cross_site.html"));
ui_test_utils::NavigateToURL(browser(), main_url);
// Grab the original frames.
content::WebContents* contents = tsm()->GetActiveWebContents();
content::RenderFrameHost* main_frame = contents->GetMainFrame();
ASSERT_EQ(3u, contents->GetAllFrames().size());
content::RenderFrameHost* child_frame = contents->GetAllFrames()[1];
// Sanity check that in this test page the main frame and the
// subframe are cross-site.
EXPECT_NE(main_frame->GetLastCommittedURL().GetOrigin(),
child_frame->GetLastCommittedURL().GetOrigin());
if (content::AreAllSitesIsolatedForTesting()) {
EXPECT_NE(main_frame->GetSiteInstance(), child_frame->GetSiteInstance());
EXPECT_NE(main_frame->GetProcess()->GetID(),
child_frame->GetProcess()->GetID());
}
// document.wasDiscarded is false before discard, on main frame and child
// frame.
bool before_discard_mainframe_result;
EXPECT_TRUE(content::ExecuteScriptAndExtractBool(
main_frame, kDiscardedStateJS, &before_discard_mainframe_result));
EXPECT_FALSE(before_discard_mainframe_result);
bool before_discard_childframe_result;
EXPECT_TRUE(content::ExecuteScriptAndExtractBool(
child_frame, kDiscardedStateJS, &before_discard_childframe_result));
EXPECT_FALSE(before_discard_childframe_result);
// Discard the tab. This simulates a tab discard.
TabLifecycleUnitExternal::FromWebContents(contents)->DiscardTab();
// Here we simulate re-focussing the tab causing reload with navigation,
// the navigation will reload the tab.
// TODO(panicker): Consider adding a test hook on LifecycleUnit when ready.
ui_test_utils::NavigateToURL(browser(), main_url);
// Re-assign pointers after discarding, as they've changed.
contents = tsm()->GetActiveWebContents();
main_frame = contents->GetMainFrame();
ASSERT_LE(2u, contents->GetAllFrames().size());
child_frame = contents->GetAllFrames()[1];
// document.wasDiscarded is true after discard, on mainframe and childframe.
bool discarded_mainframe_result;
EXPECT_TRUE(content::ExecuteScriptAndExtractBool(
main_frame, kDiscardedStateJS, &discarded_mainframe_result));
EXPECT_TRUE(discarded_mainframe_result);
bool discarded_childframe_result;
EXPECT_TRUE(content::ExecuteScriptAndExtractBool(
child_frame, kDiscardedStateJS, &discarded_childframe_result));
EXPECT_TRUE(discarded_childframe_result);
// Navigate the child frame, wasDiscarded is not set anymore.
GURL childframe_url(embedded_test_server()->GetURL("b.com", "/title1.html"));
EXPECT_TRUE(NavigateIframeToURL(contents, "frame1", childframe_url));
EXPECT_TRUE(content::ExecuteScriptAndExtractBool(
contents->GetAllFrames()[1], kDiscardedStateJS,
&discarded_childframe_result));
EXPECT_FALSE(discarded_childframe_result);
// Navigate second child frame cross site.
GURL second_childframe_url(
embedded_test_server()->GetURL("d.com", "/title1.html"));
EXPECT_TRUE(NavigateIframeToURL(contents, "frame2", second_childframe_url));
EXPECT_TRUE(content::ExecuteScriptAndExtractBool(
contents->GetAllFrames()[2], kDiscardedStateJS,
&discarded_childframe_result));
EXPECT_FALSE(discarded_childframe_result);
// Navigate the main frame (same site) again, wasDiscarded is not set anymore.
ui_test_utils::NavigateToURL(browser(), main_url);
EXPECT_TRUE(content::ExecuteScriptAndExtractBool(
main_frame, kDiscardedStateJS, &discarded_mainframe_result));
EXPECT_FALSE(discarded_mainframe_result);
// Go back in history and ensure wasDiscarded is still false.
content::TestNavigationObserver observer(contents);
contents->GetController().GoBack();
observer.Wait();
EXPECT_TRUE(content::ExecuteScriptAndExtractBool(
main_frame, kDiscardedStateJS, &discarded_mainframe_result));
EXPECT_FALSE(discarded_mainframe_result);
}
namespace {
// Ensures that |browser| has |num_tabs| open tabs.
void EnsureTabsInBrowser(Browser* browser, int num_tabs) {
for (int i = 0; i < num_tabs; ++i) {
ui_test_utils::NavigateToURLWithDisposition(
browser, GURL(chrome::kChromeUICreditsURL),
i == 0 ? WindowOpenDisposition::CURRENT_TAB
: WindowOpenDisposition::NEW_BACKGROUND_TAB,
ui_test_utils::BROWSER_TEST_WAIT_FOR_NAVIGATION);
}
EXPECT_EQ(num_tabs, browser->tab_strip_model()->count());
}
// Creates a browser with |num_tabs| tabs.
Browser* CreateBrowserWithTabs(int num_tabs) {
Browser* current_browser = BrowserList::GetInstance()->GetLastActive();
ui_test_utils::BrowserAddedObserver browser_added_observer;
chrome::NewWindow(current_browser);
Browser* new_browser = browser_added_observer.WaitForSingleNewBrowser();
EXPECT_EQ(new_browser, BrowserList::GetInstance()->GetLastActive());
EnsureTabsInBrowser(new_browser, num_tabs);
return new_browser;
}
} // namespace
// Flaky on Linux. Times out on Windows debug builds. http://crbug.com/772839.
#if defined(OS_LINUX) || (defined(OS_WIN) && !defined(NDEBUG))
#define MAYBE_DiscardTabsWithMinimizedAndOccludedWindows \
DISABLED_DiscardTabsWithMinimizedAndOccludedWindows
#else
#define MAYBE_DiscardTabsWithMinimizedAndOccludedWindows \
DiscardTabsWithMinimizedAndOccludedWindows
#endif
IN_PROC_BROWSER_TEST_F(TabManagerTest,
MAYBE_DiscardTabsWithMinimizedAndOccludedWindows) {
// Covered by |browser2|.
Browser* browser1 = browser();
EnsureTabsInBrowser(browser1, 2);
browser1->window()->SetBounds(gfx::Rect(10, 10, 10, 10));
// Covers |browser1|.
Browser* browser2 = CreateBrowserWithTabs(2);
EXPECT_NE(browser1, browser2);
browser2->window()->SetBounds(gfx::Rect(0, 0, 100, 100));
// Active browser.
Browser* browser3 = CreateBrowserWithTabs(2);
EXPECT_NE(browser1, browser3);
EXPECT_NE(browser2, browser3);
browser3->window()->SetBounds(gfx::Rect(110, 0, 100, 100));
// Minimized browser.
Browser* browser4 = CreateBrowserWithTabs(2);
browser4->window()->Minimize();
EXPECT_NE(browser1, browser4);
EXPECT_NE(browser2, browser4);
EXPECT_NE(browser3, browser4);
// Advance time so everything is urgent discardable.
test_clock_.Advance(kBackgroundUrgentProtectionTime);
for (int i = 0; i < 8; ++i)
tab_manager()->DiscardTab(LifecycleUnitDiscardReason::PROACTIVE);
base::RunLoop().RunUntilIdle();
// On ChromeOS, active tabs are discarded if their window is non-visible. On
// other platforms, they are never discarded.
#if defined(OS_CHROMEOS)
EXPECT_TRUE(IsTabDiscarded(browser1->tab_strip_model()->GetWebContentsAt(0)));
EXPECT_FALSE(
IsTabDiscarded(browser2->tab_strip_model()->GetWebContentsAt(0)));
EXPECT_FALSE(
IsTabDiscarded(browser3->tab_strip_model()->GetWebContentsAt(0)));
EXPECT_TRUE(IsTabDiscarded(browser4->tab_strip_model()->GetWebContentsAt(0)));
#else
EXPECT_FALSE(
IsTabDiscarded(browser1->tab_strip_model()->GetWebContentsAt(0)));
EXPECT_FALSE(
IsTabDiscarded(browser2->tab_strip_model()->GetWebContentsAt(0)));
EXPECT_FALSE(
IsTabDiscarded(browser3->tab_strip_model()->GetWebContentsAt(0)));
EXPECT_FALSE(
IsTabDiscarded(browser4->tab_strip_model()->GetWebContentsAt(0)));
#endif
// Non-active tabs can be discarded on all platforms.
EXPECT_TRUE(IsTabDiscarded(browser1->tab_strip_model()->GetWebContentsAt(1)));
EXPECT_TRUE(IsTabDiscarded(browser2->tab_strip_model()->GetWebContentsAt(1)));
EXPECT_TRUE(IsTabDiscarded(browser3->tab_strip_model()->GetWebContentsAt(1)));
EXPECT_TRUE(IsTabDiscarded(browser4->tab_strip_model()->GetWebContentsAt(1)));
}
IN_PROC_BROWSER_TEST_F(TabManagerTest, UnfreezeTabOnNavigationEvent) {
TestTransitionFromActiveToPendingFreeze();
browser()->tab_strip_model()->GetWebContentsAt(1)->GetController().Reload(
content::ReloadType::NORMAL, false);
ExpectStateTransitionObserver expect_state_transition(
GetLifecycleUnitAt(1), LifecycleUnitState::ACTIVE);
expect_state_transition.AllowState(LifecycleUnitState::PENDING_UNFREEZE);
expect_state_transition.AllowState(LifecycleUnitState::FROZEN);
expect_state_transition.Wait();
}
} // namespace resource_coordinator
#endif // OS_WIN || OS_MAXOSX || OS_LINUX || defined(OS_CHROMEOS)