chrome/browser/tab_contents/navigation_metrics_recorder.cc

// 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 "chrome/browser/tab_contents/navigation_metrics_recorder.h"

#include "base/metrics/histogram_macros.h"
#include "chrome/browser/browser_process.h"
#include "components/navigation_metrics/navigation_metrics.h"
#include "components/rappor/rappor_utils.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/navigation_details.h"
#include "content/public/browser/navigation_entry.h"
#include "content/public/browser/render_view_host.h"
#include "content/public/browser/render_widget_host_view.h"
#include "content/public/common/frame_navigate_params.h"
#include "url/gurl.h"

#if defined(OS_WIN)
#include "base/win/windows_version.h"
#include "chrome/browser/metro_utils/metro_chrome_win.h"
#endif

DEFINE_WEB_CONTENTS_USER_DATA_KEY(NavigationMetricsRecorder);

NavigationMetricsRecorder::NavigationMetricsRecorder(
    content::WebContents* web_contents)
    : content::WebContentsObserver(web_contents) {
}

NavigationMetricsRecorder::~NavigationMetricsRecorder() {
}

void NavigationMetricsRecorder::DidNavigateMainFrame(
      const content::LoadCommittedDetails& details,
      const content::FrameNavigateParams& params) {
  DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
  navigation_metrics::RecordMainFrameNavigation(details.entry->GetVirtualURL(),
                                                details.is_in_page);
  // Record the domain and registry of the URL that resulted in a navigation to
  // a |data:| URL, either by redirects or user clicking a link.
  if (details.entry->GetVirtualURL().SchemeIs(url::kDataScheme) &&
      params.transition != ui::PAGE_TRANSITION_TYPED &&
      !details.previous_url.is_empty()) {
    rappor::SampleDomainAndRegistryFromGURL(g_browser_process->rappor_service(),
                                            "Navigation.Scheme.Data",
                                            details.previous_url);
  }
}

void NavigationMetricsRecorder::DidStartLoading() {
#if defined(OS_WIN) && defined(USE_ASH)
  content::RenderViewHost* rvh = web_contents()->GetRenderViewHost();

  if (rvh && base::win::GetVersion() >= base::win::VERSION_WIN8) {
    content::RenderWidgetHostView* rwhv = rvh->GetView();
    if (rwhv) {
      gfx::NativeView native_view = rwhv->GetNativeView();
      if (native_view) {
        chrome::HostDesktopType desktop =
            chrome::GetHostDesktopTypeForNativeView(native_view);
        UMA_HISTOGRAM_ENUMERATION("Win8.PageLoad",
                                  chrome::GetWin8Environment(desktop),
                                  chrome::WIN_8_ENVIRONMENT_MAX);
      }
    }
  }
#endif
}