| // Copyright 2022 The Chromium Authors | 
 | // Use of this source code is governed by a BSD-style license that can be | 
 | // found in the LICENSE file. | 
 |  | 
 | #include <string_view> | 
 |  | 
 | #include "base/run_loop.h" | 
 | #include "base/test/bind.h" | 
 | #include "content/browser/renderer_host/render_frame_host_impl.h" | 
 | #include "content/browser/web_contents/web_contents_impl.h" | 
 | #include "content/public/browser/weak_document_ptr.h" | 
 | #include "content/public/test/browser_test.h" | 
 | #include "content/public/test/browser_test_utils.h" | 
 | #include "content/public/test/content_browser_test.h" | 
 | #include "content/public/test/content_browser_test_utils.h" | 
 | #include "content/shell/browser/shell.h" | 
 | #include "content/shell/common/render_frame_test_helper.mojom.h" | 
 | #include "content/test/content_browser_test_utils_internal.h" | 
 | #include "mojo/public/cpp/bindings/remote.h" | 
 | #include "net/dns/mock_host_resolver.h" | 
 | #include "testing/gtest/include/gtest/gtest.h" | 
 | #include "third_party/blink/public/common/chrome_debug_urls.h" | 
 | #include "third_party/blink/public/common/tokens/tokens.h" | 
 | #include "url/gurl.h" | 
 |  | 
 | namespace content { | 
 |  | 
 | namespace { | 
 |  | 
 | // The general structure of all tests is to navigate A -> A -> B. A -> A will | 
 | // reuse the same `RenderFrameHost` (without RenderDocument) while A -> B will | 
 | // swap to a new `RenderFrameHost` (with --site-per-process). | 
 | class DocumentTokenBrowserTest : public ContentBrowserTest { | 
 |  protected: | 
 |   void SetUpOnMainThread() override { | 
 |     ContentBrowserTest::SetUpOnMainThread(); | 
 |  | 
 |     host_resolver()->AddRule("*", "127.0.0.1"); | 
 |     ASSERT_TRUE(embedded_test_server()->Start()); | 
 |   } | 
 |  | 
 |   WebContentsImpl* web_contents() { | 
 |     return static_cast<WebContentsImpl*>(shell()->web_contents()); | 
 |   } | 
 |  | 
 |   blink::DocumentToken GetBrowserSideToken(ToRenderFrameHost adapter) { | 
 |     return static_cast<RenderFrameHostImpl*>(adapter.render_frame_host()) | 
 |         ->GetDocumentToken(); | 
 |   } | 
 |  | 
 |   // Verifies that the browser-side `DocumentToken` and the renderer-side | 
 |   // `DocumentToken` have matching values. | 
 |   [[nodiscard]] ::testing::AssertionResult VerifyMatchingTokens( | 
 |       ToRenderFrameHost adapter) { | 
 |     blink::DocumentToken token_from_browser = GetBrowserSideToken(adapter); | 
 |  | 
 |     mojo::Remote<mojom::RenderFrameTestHelper> remote; | 
 |     adapter.render_frame_host()->GetRemoteInterfaces()->GetInterface( | 
 |         remote.BindNewPipeAndPassReceiver()); | 
 |     blink::DocumentToken token_from_renderer; | 
 |     base::RunLoop run_loop; | 
 |     remote->GetDocumentToken( | 
 |         base::BindLambdaForTesting([&](const blink::DocumentToken& token) { | 
 |           token_from_renderer = token; | 
 |           run_loop.Quit(); | 
 |         })); | 
 |     run_loop.Run(); | 
 |  | 
 |     if (token_from_browser == token_from_renderer) { | 
 |       return ::testing::AssertionSuccess(); | 
 |     } | 
 |     return ::testing::AssertionFailure() | 
 |            << "browser token was " << token_from_browser | 
 |            << " but renderer token was " << token_from_renderer; | 
 |   } | 
 |  | 
 |   // Whether or not `NavigateAndGetNewToken()` should wait for the response and | 
 |   // validate document token state immediately afterwards. Most tests should | 
 |   // expect and wait for a response; however, tests that are exercising | 
 |   // `CommitFailedNavigation()` will probably want to specify `kNo`. | 
 |   enum class ExpectedResponse { | 
 |     kYes, | 
 |     kNo, | 
 |   }; | 
 |  | 
 |   // Navigate `adapter.render_frame_host()` to `target_url`. Verifies that the | 
 |   // browser and renderer state are in sync, and that the document token is not | 
 |   // updated until the navigation actually commits. | 
 |   // | 
 |   // Note: this helper makes IPCs to the `RenderFrame`; for the first navigation | 
 |   // in a WebContents, it is typically more appropriate to use `NavigateToURL()` | 
 |   // or another similar helper instead. | 
 |   blink::DocumentToken NavigateAndGetNewToken( | 
 |       ToRenderFrameHost adapter, | 
 |       const GURL& target_url, | 
 |       ExpectedResponse expect_response = ExpectedResponse::kYes) { | 
 |     SCOPED_TRACE(target_url.spec()); | 
 |     // Capture the FrameTreeNode now; when a navigation commits, the current | 
 |     // RenderFrameHost may change. | 
 |     RenderFrameHostImpl* const old_render_frame_host = | 
 |         static_cast<RenderFrameHostImpl*>(adapter.render_frame_host()); | 
 |     FrameTreeNode* const frame_tree_node = | 
 |         old_render_frame_host->frame_tree_node(); | 
 |     const int old_process_id = | 
 |         old_render_frame_host->GetProcess()->GetDeprecatedID(); | 
 |     const blink::LocalFrameToken old_frame_token = | 
 |         old_render_frame_host->GetFrameToken(); | 
 |     const blink::DocumentToken old_document_token = | 
 |         GetBrowserSideToken(old_render_frame_host); | 
 |     const WeakDocumentPtr old_weak_document_ptr = | 
 |         old_render_frame_host->GetWeakDocumentPtr(); | 
 |     EXPECT_EQ(old_render_frame_host, RenderFrameHostImpl::FromDocumentToken( | 
 |                                          old_process_id, old_document_token)); | 
 |  | 
 |     // Start a new navigation in the main frame. The navigation is still | 
 |     // ongoing, so `DocumentToken` should not be updated yet. | 
 |     TestNavigationManager nav_manager( | 
 |         WebContents::FromRenderFrameHost(old_render_frame_host), target_url); | 
 |     EXPECT_TRUE(BeginNavigateToURLFromRenderer(adapter, target_url)); | 
 |     EXPECT_TRUE(VerifyMatchingTokens(old_render_frame_host)); | 
 |     EXPECT_EQ(old_document_token, GetBrowserSideToken(old_render_frame_host)); | 
 |     EXPECT_EQ(old_render_frame_host, RenderFrameHostImpl::FromDocumentToken( | 
 |                                          old_process_id, old_document_token)); | 
 |  | 
 |     // Just before the request is actually issued, the navigation is still | 
 |     // ongoing, so `DocumentToken` should not be updated yet. | 
 |     EXPECT_TRUE(nav_manager.WaitForRequestStart()); | 
 |     EXPECT_TRUE(VerifyMatchingTokens(old_render_frame_host)); | 
 |     EXPECT_EQ(old_document_token, GetBrowserSideToken(old_render_frame_host)); | 
 |     EXPECT_EQ(old_render_frame_host, RenderFrameHostImpl::FromDocumentToken( | 
 |                                          old_process_id, old_document_token)); | 
 |  | 
 |     if (ExpectedResponse::kYes == expect_response) { | 
 |       // Just before reading the response, the navigation is still ongoing, so | 
 |       // `DocumentToken` should not be updated yet. | 
 |       EXPECT_TRUE(nav_manager.WaitForResponse()); | 
 |       EXPECT_TRUE(VerifyMatchingTokens(old_render_frame_host)); | 
 |       EXPECT_EQ(old_document_token, GetBrowserSideToken(old_render_frame_host)); | 
 |       EXPECT_EQ(old_render_frame_host, RenderFrameHostImpl::FromDocumentToken( | 
 |                                            old_process_id, old_document_token)); | 
 |     } | 
 |  | 
 |     // Once a cross-document navigation completes, the document token should be | 
 |     // updated though. | 
 |     EXPECT_TRUE(nav_manager.WaitForNavigationFinished()); | 
 |     // The RenderFrameHost may have changed; use the FrameTreeNode captured | 
 |     // above instead. | 
 |     RenderFrameHostImpl* const new_render_frame_host = | 
 |         frame_tree_node->current_frame_host(); | 
 |     EXPECT_EQ(target_url, new_render_frame_host->GetLastCommittedURL()); | 
 |     EXPECT_TRUE(VerifyMatchingTokens(new_render_frame_host)); | 
 |     const blink::LocalFrameToken new_frame_token = | 
 |         new_render_frame_host->GetFrameToken(); | 
 |     const blink::DocumentToken new_document_token = | 
 |         GetBrowserSideToken(new_render_frame_host); | 
 |     EXPECT_NE(new_document_token, old_document_token); | 
 |     if (new_frame_token == old_frame_token) { | 
 |       // If the RenderFrameHost is reused, it should no longer be possible to | 
 |       // use the old token to look up the RenderFrameHost. | 
 |       EXPECT_EQ(nullptr, RenderFrameHostImpl::FromDocumentToken( | 
 |                              old_process_id, old_document_token)); | 
 |     } else if (old_weak_document_ptr.AsRenderFrameHostIfValid()) { | 
 |       // Otherwise, if the old RenderFrameHost is still around, it should still | 
 |       // map to the same RenderFrameHost. | 
 |       EXPECT_EQ(old_render_frame_host, RenderFrameHostImpl::FromDocumentToken( | 
 |                                            old_process_id, old_document_token)); | 
 |     } | 
 |     EXPECT_EQ(new_render_frame_host, | 
 |               RenderFrameHostImpl::FromDocumentToken( | 
 |                   new_render_frame_host->GetProcess()->GetDeprecatedID(), | 
 |                   new_document_token)); | 
 |     return new_document_token; | 
 |   } | 
 | }; | 
 |  | 
 | IN_PROC_BROWSER_TEST_F(DocumentTokenBrowserTest, MainFrameBasic) { | 
 |   std::vector<blink::DocumentToken> seen_tokens; | 
 |  | 
 |   ASSERT_TRUE(NavigateToURL( | 
 |       web_contents(), embedded_test_server()->GetURL("a.com", "/title1.html"))); | 
 |   EXPECT_TRUE(VerifyMatchingTokens(web_contents())); | 
 |   seen_tokens.push_back(GetBrowserSideToken(web_contents())); | 
 |  | 
 |   seen_tokens.push_back(NavigateAndGetNewToken( | 
 |       web_contents(), embedded_test_server()->GetURL("a.com", "/title1.html"))); | 
 |  | 
 |   seen_tokens.push_back(NavigateAndGetNewToken( | 
 |       web_contents(), embedded_test_server()->GetURL("b.com", "/title1.html"))); | 
 |  | 
 |   std::set unique_tokens(seen_tokens.begin(), seen_tokens.end()); | 
 |   EXPECT_EQ(unique_tokens.size(), seen_tokens.size()); | 
 | } | 
 |  | 
 | IN_PROC_BROWSER_TEST_F(DocumentTokenBrowserTest, SubFrameBasic) { | 
 |   std::vector<blink::DocumentToken> seen_tokens; | 
 |  | 
 |   ASSERT_TRUE(NavigateToURL( | 
 |       web_contents(), embedded_test_server()->GetURL( | 
 |                           "a.com", "/cross_site_iframe_factory.html?a(a)"))); | 
 |   EXPECT_TRUE(VerifyMatchingTokens(web_contents())); | 
 |   EXPECT_TRUE(VerifyMatchingTokens(ChildFrameAt(web_contents(), 0))); | 
 |   seen_tokens.push_back(GetBrowserSideToken(web_contents())); | 
 |   seen_tokens.push_back(GetBrowserSideToken(ChildFrameAt(web_contents(), 0))); | 
 |  | 
 |   seen_tokens.push_back(NavigateAndGetNewToken( | 
 |       ChildFrameAt(web_contents(), 0), | 
 |       embedded_test_server()->GetURL("a.com", "/title1.html"))); | 
 |   // Main document did not navigate so the token should be the same. | 
 |   EXPECT_EQ(seen_tokens[0], GetBrowserSideToken(web_contents())); | 
 |  | 
 |   seen_tokens.push_back(NavigateAndGetNewToken( | 
 |       ChildFrameAt(web_contents(), 0), | 
 |       embedded_test_server()->GetURL("b.com", "/title1.html"))); | 
 |   // Main document did not navigate so the token should be the same. | 
 |   EXPECT_EQ(seen_tokens[0], GetBrowserSideToken(web_contents())); | 
 |  | 
 |   std::set unique_tokens(seen_tokens.begin(), seen_tokens.end()); | 
 |   EXPECT_EQ(unique_tokens.size(), seen_tokens.size()); | 
 | } | 
 |  | 
 | IN_PROC_BROWSER_TEST_F(DocumentTokenBrowserTest, NewWindowBasic) { | 
 |   std::vector<blink::DocumentToken> seen_tokens; | 
 |  | 
 |   ASSERT_TRUE(NavigateToURL( | 
 |       web_contents(), embedded_test_server()->GetURL("a.com", "/title1.html"))); | 
 |   EXPECT_EQ(1u, Shell::windows().size()); | 
 |   seen_tokens.push_back(GetBrowserSideToken(web_contents())); | 
 |  | 
 |   WebContents* new_contents = nullptr; | 
 |   { | 
 |     // This block is largely derived from `NavigateAndGetNewToken()`. This test | 
 |     // cannot easily reuse that helper because: | 
 |     // | 
 |     // - it is important to specify an actual target URL other than about:blank | 
 |     //   for `window.open()`. Specifying no target URL and then later navigating | 
 |     //   the window has subtly different behavior (e.g. the | 
 |     //   `NewWindowSyncCommit` test below). | 
 |     // - the helper expects the `WebContents` to already exist in order to | 
 |     // install | 
 |     //   `TestNavigationManager`. However, in this test, a new `WebContents` is | 
 |     //   created in the process of running the test. | 
 |     ExecuteScriptAsync(web_contents(), JsReplace("window.open($1)", | 
 |                                                  embedded_test_server()->GetURL( | 
 |                                                      "a.com", "/title1.html"))); | 
 |     ShellAddedObserver wait_for_new_shell; | 
 |     new_contents = wait_for_new_shell.GetShell()->web_contents(); | 
 |     DCHECK_EQ(2u, Shell::windows().size()); | 
 |     DCHECK_EQ(new_contents, Shell::windows()[1]->web_contents()); | 
 |     DCHECK_NE(new_contents, web_contents()); | 
 |     seen_tokens.push_back(GetBrowserSideToken(new_contents)); | 
 |     TestNavigationManager nav_manager( | 
 |         new_contents, embedded_test_server()->GetURL("a.com", "/title1.html")); | 
 |  | 
 |     // Capture the FrameTreeNode now; when a navigation commits, the current | 
 |     // RenderFrameHost may change. | 
 |     RenderFrameHostImpl* const old_render_frame_host = | 
 |         static_cast<RenderFrameHostImpl*>(new_contents->GetPrimaryMainFrame()); | 
 |     FrameTreeNode* const frame_tree_node = | 
 |         old_render_frame_host->frame_tree_node(); | 
 |     const int old_process_id = | 
 |         old_render_frame_host->GetProcess()->GetDeprecatedID(); | 
 |     const blink::LocalFrameToken old_frame_token = | 
 |         old_render_frame_host->GetFrameToken(); | 
 |     const blink::DocumentToken old_document_token = | 
 |         GetBrowserSideToken(new_contents); | 
 |     const WeakDocumentPtr old_weak_document_ptr = | 
 |         old_render_frame_host->GetWeakDocumentPtr(); | 
 |  | 
 |     EXPECT_TRUE(VerifyMatchingTokens(new_contents)); | 
 |     EXPECT_EQ(old_document_token, GetBrowserSideToken(new_contents)); | 
 |     EXPECT_EQ(old_render_frame_host, RenderFrameHostImpl::FromDocumentToken( | 
 |                                          old_process_id, old_document_token)); | 
 |     // Even after creating a new window, the original `WebContents` should still | 
 |     // have the same `DocumentToken`. | 
 |     EXPECT_EQ(seen_tokens[0], GetBrowserSideToken(web_contents())); | 
 |  | 
 |     // Just before the request is actually issued, the navigation is still | 
 |     // ongoing, so `DocumentToken` should not be updated yet. | 
 |     EXPECT_TRUE(nav_manager.WaitForRequestStart()); | 
 |     EXPECT_TRUE(VerifyMatchingTokens(new_contents)); | 
 |     EXPECT_EQ(old_document_token, GetBrowserSideToken(new_contents)); | 
 |     EXPECT_EQ(old_render_frame_host, RenderFrameHostImpl::FromDocumentToken( | 
 |                                          old_process_id, old_document_token)); | 
 |     // The original `WebContents` should still have the same `DocumentToken`. | 
 |     EXPECT_EQ(seen_tokens[0], GetBrowserSideToken(web_contents())); | 
 |  | 
 |     // Just before reading the response, the navigation is still ongoing, so | 
 |     // `DocumentToken` should not be updated yet. | 
 |     EXPECT_TRUE(nav_manager.WaitForResponse()); | 
 |     EXPECT_TRUE(VerifyMatchingTokens(new_contents)); | 
 |     EXPECT_EQ(old_document_token, GetBrowserSideToken(new_contents)); | 
 |     EXPECT_EQ(old_render_frame_host, RenderFrameHostImpl::FromDocumentToken( | 
 |                                          old_process_id, old_document_token)); | 
 |     // The original `WebContents` should still have the same `DocumentToken`. | 
 |     EXPECT_EQ(seen_tokens[0], GetBrowserSideToken(web_contents())); | 
 |  | 
 |     // Once a cross-document navigation completes, the document token should be | 
 |     // updated though. | 
 |     ASSERT_TRUE(nav_manager.WaitForNavigationFinished()); | 
 |     // The RenderFrameHost may have changed; use the FrameTreeNode captured | 
 |     // above instead. | 
 |     RenderFrameHostImpl* const new_render_frame_host = | 
 |         frame_tree_node->current_frame_host(); | 
 |     EXPECT_EQ(embedded_test_server()->GetURL("a.com", "/title1.html"), | 
 |               new_render_frame_host->GetLastCommittedURL()); | 
 |     EXPECT_TRUE(VerifyMatchingTokens(new_render_frame_host)); | 
 |     const blink::LocalFrameToken new_frame_token = | 
 |         new_render_frame_host->GetFrameToken(); | 
 |     const blink::DocumentToken new_document_token = | 
 |         GetBrowserSideToken(new_render_frame_host); | 
 |     EXPECT_NE(new_document_token, old_document_token); | 
 |     if (new_frame_token == old_frame_token) { | 
 |       // If the RenderFrameHost is reused, it should no longer be possible to | 
 |       // use the old token to look up the RenderFrameHost. | 
 |       EXPECT_EQ(nullptr, RenderFrameHostImpl::FromDocumentToken( | 
 |                              old_process_id, old_document_token)); | 
 |     } else if (old_weak_document_ptr.AsRenderFrameHostIfValid()) { | 
 |       // Otherwise, if the old RenderFrameHost is still around, it should still | 
 |       // map to the same RenderFrameHost. | 
 |       EXPECT_EQ(old_render_frame_host, RenderFrameHostImpl::FromDocumentToken( | 
 |                                            old_process_id, old_document_token)); | 
 |     } | 
 |     EXPECT_EQ(new_render_frame_host, | 
 |               RenderFrameHostImpl::FromDocumentToken( | 
 |                   new_render_frame_host->GetProcess()->GetDeprecatedID(), | 
 |                   new_document_token)); | 
 |     seen_tokens.push_back(new_document_token); | 
 |     // The original `WebContents` should still have the same `DocumentToken`. | 
 |     EXPECT_EQ(seen_tokens[0], GetBrowserSideToken(web_contents())); | 
 |   } | 
 |  | 
 |   seen_tokens.push_back(NavigateAndGetNewToken( | 
 |       new_contents, embedded_test_server()->GetURL("a.com", "/title1.html"))); | 
 |   // The original `WebContents` should still have the same `DocumentToken`. | 
 |   EXPECT_EQ(seen_tokens[0], GetBrowserSideToken(web_contents())); | 
 |  | 
 |   seen_tokens.push_back(NavigateAndGetNewToken( | 
 |       new_contents, embedded_test_server()->GetURL("b.com", "/title1.html"))); | 
 |   // The original `WebContents` should still have the same `DocumentToken`. | 
 |   EXPECT_EQ(seen_tokens[0], GetBrowserSideToken(web_contents())); | 
 |  | 
 |   std::set unique_tokens(seen_tokens.begin(), seen_tokens.end()); | 
 |   EXPECT_EQ(unique_tokens.size(), seen_tokens.size()); | 
 | } | 
 |  | 
 | IN_PROC_BROWSER_TEST_F(DocumentTokenBrowserTest, SubFrameSyncCommit) { | 
 |   std::vector<blink::DocumentToken> seen_tokens; | 
 |  | 
 |   // This is a basic test that the synchronous commit of about:blank reuses the | 
 |   // same DocumentToken. See https://crbug.com/778318 for more details. | 
 |   ASSERT_TRUE(NavigateToURL( | 
 |       web_contents(), | 
 |       embedded_test_server()->GetURL("a.com", "/page_with_blank_iframe.html"))); | 
 |   EXPECT_TRUE(VerifyMatchingTokens(web_contents())); | 
 |   EXPECT_TRUE(VerifyMatchingTokens(ChildFrameAt(web_contents(), 0))); | 
 |   seen_tokens.push_back(GetBrowserSideToken(web_contents())); | 
 |   seen_tokens.push_back(GetBrowserSideToken(ChildFrameAt(web_contents(), 0))); | 
 |  | 
 |   seen_tokens.push_back(NavigateAndGetNewToken( | 
 |       ChildFrameAt(web_contents(), 0), | 
 |       embedded_test_server()->GetURL("a.com", "/title1.html"))); | 
 |   // Main document did not navigate so the token should be the same. | 
 |   EXPECT_EQ(seen_tokens[0], GetBrowserSideToken(web_contents())); | 
 |  | 
 |   seen_tokens.push_back(NavigateAndGetNewToken( | 
 |       ChildFrameAt(web_contents(), 0), | 
 |       embedded_test_server()->GetURL("b.com", "/title1.html"))); | 
 |   // Main document did not navigate so the token should be the same. | 
 |   EXPECT_EQ(seen_tokens[0], GetBrowserSideToken(web_contents())); | 
 |  | 
 |   std::set unique_tokens(seen_tokens.begin(), seen_tokens.end()); | 
 |   EXPECT_EQ(unique_tokens.size(), seen_tokens.size()); | 
 | } | 
 |  | 
 | IN_PROC_BROWSER_TEST_F(DocumentTokenBrowserTest, NewWindowSyncCommit) { | 
 |   std::vector<blink::DocumentToken> seen_tokens; | 
 |  | 
 |   ASSERT_TRUE(NavigateToURL(web_contents(), GURL("about:blank"))); | 
 |   EXPECT_EQ(1u, Shell::windows().size()); | 
 |   EXPECT_TRUE(VerifyMatchingTokens(web_contents())); | 
 |   seen_tokens.push_back(GetBrowserSideToken(web_contents())); | 
 |  | 
 |   // This is a basic test that the synchronous commit of about:blank reuses the | 
 |   // same DocumentToken. See https://crbug.com/778318 for more details. | 
 |   ASSERT_TRUE(ExecJs(web_contents(), "window.open()")); | 
 |   ASSERT_EQ(2u, Shell::windows().size()); | 
 |   WebContents* new_contents = Shell::windows()[1]->web_contents(); | 
 |   DCHECK_NE(new_contents, web_contents()); | 
 |   EXPECT_TRUE(VerifyMatchingTokens(new_contents)); | 
 |   // The original `WebContents` should still have the same `DocumentToken`. | 
 |   EXPECT_EQ(seen_tokens[0], GetBrowserSideToken(web_contents())); | 
 |  | 
 |   seen_tokens.push_back(NavigateAndGetNewToken( | 
 |       new_contents, embedded_test_server()->GetURL("a.com", "/title1.html"))); | 
 |   // The original `WebContents` should still have the same `DocumentToken`. | 
 |   EXPECT_EQ(seen_tokens[0], GetBrowserSideToken(web_contents())); | 
 |  | 
 |   seen_tokens.push_back(NavigateAndGetNewToken( | 
 |       new_contents, embedded_test_server()->GetURL("a.com", "/title1.html"))); | 
 |   // The original `WebContents` should still have the same `DocumentToken`. | 
 |   EXPECT_EQ(seen_tokens[0], GetBrowserSideToken(web_contents())); | 
 |  | 
 |   seen_tokens.push_back(NavigateAndGetNewToken( | 
 |       new_contents, embedded_test_server()->GetURL("b.com", "/title1.html"))); | 
 |   // The original `WebContents` should still have the same `DocumentToken`. | 
 |   EXPECT_EQ(seen_tokens[0], GetBrowserSideToken(web_contents())); | 
 |  | 
 |   std::set unique_tokens(seen_tokens.begin(), seen_tokens.end()); | 
 |   EXPECT_EQ(unique_tokens.size(), seen_tokens.size()); | 
 | } | 
 |  | 
 | IN_PROC_BROWSER_TEST_F(DocumentTokenBrowserTest, JavascriptURL) { | 
 |   ASSERT_TRUE(NavigateToURL( | 
 |       web_contents(), embedded_test_server()->GetURL("a.com", "/title1.html"))); | 
 |   EXPECT_TRUE(VerifyMatchingTokens(web_contents())); | 
 |   const blink::DocumentToken token = GetBrowserSideToken(web_contents()); | 
 |  | 
 |   // A javascript: navigation that replaces the document should not change the | 
 |   // DocumentToken. This does not use the normal Navigate*() helpers since it | 
 |   // does not commit a normal cross-document navigation. | 
 |   ASSERT_TRUE(ExecJs(web_contents(), | 
 |                      JsReplace("location = $1", "javascript:'Hello world!'"))); | 
 |   EXPECT_EQ("Hello world!", EvalJs(web_contents(), "document.body.innerText")); | 
 |   EXPECT_TRUE(VerifyMatchingTokens(web_contents())); | 
 |   EXPECT_EQ(token, GetBrowserSideToken(web_contents())); | 
 | } | 
 |  | 
 | IN_PROC_BROWSER_TEST_F(DocumentTokenBrowserTest, FailedNavigation) { | 
 |   std::vector<blink::DocumentToken> seen_tokens; | 
 |  | 
 |   ASSERT_TRUE(NavigateToURL( | 
 |       web_contents(), embedded_test_server()->GetURL("a.com", "/title1.html"))); | 
 |   EXPECT_TRUE(VerifyMatchingTokens(web_contents())); | 
 |   seen_tokens.push_back(GetBrowserSideToken(web_contents())); | 
 |  | 
 |   seen_tokens.push_back(NavigateAndGetNewToken( | 
 |       web_contents(), embedded_test_server()->GetURL("a.com", "/close-socket"), | 
 |       ExpectedResponse::kNo)); | 
 |  | 
 |   seen_tokens.push_back(NavigateAndGetNewToken( | 
 |       web_contents(), embedded_test_server()->GetURL("a.com", "/close-socket"), | 
 |       ExpectedResponse::kNo)); | 
 |  | 
 |   seen_tokens.push_back(NavigateAndGetNewToken( | 
 |       web_contents(), embedded_test_server()->GetURL("b.com", "/close-socket"), | 
 |       ExpectedResponse::kNo)); | 
 |  | 
 |   // Test that a regular successful navigation still updates the document token. | 
 |   seen_tokens.push_back(NavigateAndGetNewToken( | 
 |       web_contents(), embedded_test_server()->GetURL("a.com", "/title1.html"))); | 
 |  | 
 |   std::set unique_tokens(seen_tokens.begin(), seen_tokens.end()); | 
 |   EXPECT_EQ(unique_tokens.size(), seen_tokens.size()); | 
 | } | 
 |  | 
 | IN_PROC_BROWSER_TEST_F(DocumentTokenBrowserTest, CrashThenReload) { | 
 |   ASSERT_TRUE(NavigateToURL( | 
 |       web_contents(), embedded_test_server()->GetURL("a.com", "/title1.html"))); | 
 |   EXPECT_TRUE(VerifyMatchingTokens(web_contents())); | 
 |   const int old_process_id = | 
 |       web_contents()->GetPrimaryMainFrame()->GetProcess()->GetDeprecatedID(); | 
 |   const blink::DocumentToken old_document_token = | 
 |       GetBrowserSideToken(web_contents()); | 
 |  | 
 |   // Cause the renderer to crash. | 
 |   RenderProcessHostWatcher crash_observer( | 
 |       web_contents(), RenderProcessHostWatcher::WATCH_FOR_PROCESS_EXIT); | 
 |   EXPECT_FALSE(NavigateToURL(shell(), GURL(blink::kChromeUICrashURL))); | 
 |   // Wait for browser to notice the renderer crash. | 
 |   crash_observer.Wait(); | 
 |  | 
 |   // After a crash, the DocumentToken should still be the same even though the | 
 |   // renderer process is gone.. | 
 |   EXPECT_EQ(old_document_token, GetBrowserSideToken(web_contents())); | 
 |  | 
 |   // But when a live RenderFrame is needed again, RenderDocument should force a | 
 |   // new RenderFrameHost, and thus, a new DocumentToken. The remainder of this | 
 |   // test does not use `NavigateAndGetNewToken()`, which tries to use a | 
 |   // renderer-initiated navigation (which is not possible when the renderer is | 
 |   // not live). | 
 |   TestNavigationManager nav_manager( | 
 |       web_contents(), embedded_test_server()->GetURL("a.com", "/title1.html")); | 
 |   shell()->LoadURL(embedded_test_server()->GetURL("a.com", "/title1.html")); | 
 |   EXPECT_TRUE(VerifyMatchingTokens(web_contents())); | 
 |   const int new_process_id = | 
 |       web_contents()->GetPrimaryMainFrame()->GetProcess()->GetDeprecatedID(); | 
 |   const blink::DocumentToken token_after_navigation_started = | 
 |       GetBrowserSideToken(web_contents()); | 
 |   EXPECT_NE(token_after_navigation_started, old_document_token); | 
 |   const WeakDocumentPtr document_weak_ptr = | 
 |       web_contents()->GetPrimaryMainFrame()->GetWeakDocumentPtr(); | 
 |   EXPECT_EQ(web_contents()->GetPrimaryMainFrame(), | 
 |             RenderFrameHostImpl::FromDocumentToken( | 
 |                 new_process_id, token_after_navigation_started)); | 
 |   // The old RenderFrameHost should be gone at this point, so a document token | 
 |   // lookup should fail. | 
 |   EXPECT_EQ(nullptr, RenderFrameHostImpl::FromDocumentToken( | 
 |                          old_process_id, old_document_token)); | 
 |  | 
 |   // After the navigation finishes, the RenderFrameHost will still use the same | 
 |   // DocumentToken, since no new DocumentAssociatedData was created. The latter | 
 |   // is indirectly tested by checking if the WeakDocumentPtr is still valid | 
 |   // after the navigation commits. | 
 |   ASSERT_TRUE(nav_manager.WaitForNavigationFinished()); | 
 |   EXPECT_TRUE(VerifyMatchingTokens(web_contents())); | 
 |   const blink::DocumentToken token_after_navigation_finished = | 
 |       GetBrowserSideToken(web_contents()); | 
 |   EXPECT_NE(token_after_navigation_finished, old_document_token); | 
 |   EXPECT_EQ(token_after_navigation_finished, token_after_navigation_started); | 
 |   EXPECT_NE(document_weak_ptr.AsRenderFrameHostIfValid(), nullptr); | 
 |   EXPECT_EQ(web_contents()->GetPrimaryMainFrame(), | 
 |             RenderFrameHostImpl::FromDocumentToken( | 
 |                 new_process_id, token_after_navigation_started)); | 
 | } | 
 |  | 
 | IN_PROC_BROWSER_TEST_F(DocumentTokenBrowserTest, | 
 |                        CrashThenImmediateReinitialize) { | 
 |   ASSERT_TRUE(NavigateToURL( | 
 |       web_contents(), embedded_test_server()->GetURL("a.com", "/title1.html"))); | 
 |   EXPECT_TRUE(VerifyMatchingTokens(web_contents())); | 
 |   RenderFrameHostImpl* main_frame = web_contents()->GetPrimaryMainFrame(); | 
 |   const blink::LocalFrameToken frame_token = main_frame->GetFrameToken(); | 
 |   const blink::DocumentToken old_document_token = | 
 |       GetBrowserSideToken(main_frame); | 
 |   const WeakDocumentPtr document_weak_ptr = main_frame->GetWeakDocumentPtr(); | 
 |  | 
 |   // Cause the renderer to crash. | 
 |   RenderProcessHostWatcher crash_observer( | 
 |       web_contents(), RenderProcessHostWatcher::WATCH_FOR_PROCESS_EXIT); | 
 |   EXPECT_FALSE(NavigateToURL(shell(), GURL(blink::kChromeUICrashURL))); | 
 |   // Wait for browser to notice the renderer crash. | 
 |   crash_observer.Wait(); | 
 |  | 
 |   // If the main render frame is re-initialized, it also gets a new | 
 |   // DocumentAssociatedData. Validate that the new DocumentAssociatedData is | 
 |   // created before the renderer is re-created; a typical failure in this path | 
 |   // will manifest as a mismatch between the browser and renderer-side document | 
 |   // tokens. | 
 |   main_frame->frame_tree_node() | 
 |       ->render_manager() | 
 |       ->InitializeMainRenderFrameForImmediateUse(); | 
 |   // The RenderFrameHost should be reused. | 
 |   ASSERT_EQ(frame_token, | 
 |             web_contents()->GetPrimaryMainFrame()->GetFrameToken()); | 
 |   EXPECT_TRUE(VerifyMatchingTokens(web_contents())); | 
 |   // The re-created RenderFrame should have a distinct document token. | 
 |   const blink::DocumentToken new_document_token = | 
 |       GetBrowserSideToken(web_contents()); | 
 |   EXPECT_NE(new_document_token, old_document_token); | 
 |   // The previous DocumentWeakPtr should be invalidated since the | 
 |   // DocumentAssociatedData was re-created. | 
 |   EXPECT_FALSE(document_weak_ptr.AsRenderFrameHostIfValid()); | 
 |   // Even though the RenderFrameHost did not change, only a lookup using the new | 
 |   // DocumentToken should succeed. | 
 |   EXPECT_EQ(web_contents()->GetPrimaryMainFrame(), | 
 |             RenderFrameHostImpl::FromDocumentToken(web_contents() | 
 |                                                        ->GetPrimaryMainFrame() | 
 |                                                        ->GetProcess() | 
 |                                                        ->GetDeprecatedID(), | 
 |                                                    new_document_token)); | 
 |   EXPECT_EQ(nullptr, | 
 |             RenderFrameHostImpl::FromDocumentToken(web_contents() | 
 |                                                        ->GetPrimaryMainFrame() | 
 |                                                        ->GetProcess() | 
 |                                                        ->GetDeprecatedID(), | 
 |                                                    old_document_token)); | 
 | } | 
 |  | 
 | // TODO(crbug.com/40238502): Add tests for bfcache navigations and | 
 | // prerender activations. | 
 |  | 
 | IN_PROC_BROWSER_TEST_F(DocumentTokenBrowserTest, MismatchedProcessID) { | 
 |   RenderFrameHostImpl* main_frame = web_contents()->GetPrimaryMainFrame(); | 
 |   bool called = false; | 
 |   mojo::ReportBadMessageCallback callback = | 
 |       base::BindLambdaForTesting([&called](std::string_view reason) { | 
 |         called = true; | 
 |         EXPECT_EQ("process ID does not match requested DocumentToken", reason); | 
 |       }); | 
 |   EXPECT_EQ(nullptr, RenderFrameHostImpl::FromDocumentToken( | 
 |                          main_frame->GetProcess()->GetDeprecatedID() + 1, | 
 |                          main_frame->GetDocumentToken(), &callback)); | 
 |   EXPECT_TRUE(called); | 
 | } | 
 |  | 
 | }  // namespace | 
 |  | 
 | }  // namespace content |