chrome/browser/tab_contents/navigation_metrics_recorder.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "chrome/browser/tab_contents/navigation_metrics_recorder.h"
   6
   7 #include "base/metrics/histogram.h"
   8 #include "components/navigation_metrics/navigation_metrics.h"
   9 #include "content/public/browser/navigation_details.h"
  10 #include "content/public/browser/navigation_entry.h"
  11 #include "content/public/browser/render_view_host.h"
  12 #include "content/public/browser/render_widget_host_view.h"
  13
  14 #if defined(OS_WIN)
  15 #include "base/win/windows_version.h"
  16 #include "chrome/browser/metro_utils/metro_chrome_win.h"
  17 #endif
  18
  19 DEFINE_WEB_CONTENTS_USER_DATA_KEY(NavigationMetricsRecorder);
  20
  21 NavigationMetricsRecorder::NavigationMetricsRecorder(
  22     content::WebContents* web_contents)
  23     : content::WebContentsObserver(web_contents) {
  24 }
  25
  26 NavigationMetricsRecorder::~NavigationMetricsRecorder() {
  27 }
  28
  29 void NavigationMetricsRecorder::DidNavigateMainFrame(
  30       const content::LoadCommittedDetails& details,
  31       const content::FrameNavigateParams& params) {
  32   navigation_metrics::RecordMainFrameNavigation(details.entry->GetVirtualURL());
  33 }
  34
  35 void NavigationMetricsRecorder::DidStartLoading(
  36     content::RenderViewHost* render_view_host) {
  37 #if defined(OS_WIN) && defined(USE_ASH)
  38   if (base::win::GetVersion() >= base::win::VERSION_WIN8) {
  39     gfx::NativeView view = render_view_host->GetView()->GetNativeView();
  40     if (view) {
  41       chrome::HostDesktopType desktop =
  42           chrome::GetHostDesktopTypeForNativeView(view);
  43       UMA_HISTOGRAM_ENUMERATION("Win8.PageLoad",
  44                                 chrome::GetWin8Environment(desktop),
  45                                 chrome::WIN_8_ENVIRONMENT_MAX);
  46     }
  47   }
  48 #endif
  49 }
  50
  51