chrome/browser/tab_contents/navigation_metrics_recorder.h

   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 #ifndef CHROME_BROWSER_TAB_CONTENTS_NAVIGATION_METRICS_RECORDER_H_
   6 #define CHROME_BROWSER_TAB_CONTENTS_NAVIGATION_METRICS_RECORDER_H_
   7
   8 #include "content/public/browser/web_contents_observer.h"
   9 #include "content/public/browser/web_contents_user_data.h"
  10
  11 class NavigationMetricsRecorder
  12     : public content::WebContentsObserver,
  13       public content::WebContentsUserData<NavigationMetricsRecorder> {
  14  public:
  15   ~NavigationMetricsRecorder() override;
  16
  17  private:
  18   explicit NavigationMetricsRecorder(content::WebContents* web_contents);
  19   friend class content::WebContentsUserData<NavigationMetricsRecorder>;
  20
  21   // content::WebContentsObserver overrides:
  22   void DidNavigateMainFrame(
  23       const content::LoadCommittedDetails& details,
  24       const content::FrameNavigateParams& params) override;
  25
  26   void DidStartLoading() override;
  27
  28   DISALLOW_COPY_AND_ASSIGN(NavigationMetricsRecorder);
  29 };
  30
  31 #endif  // CHROME_BROWSER_TAB_CONTENTS_NAVIGATION_METRICS_RECORDER_H_