content: convert user action notification to observer usage

chrome/browser/metrics/metrics_service.h

 // 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.
 
 // This file defines a service that collects information about the user
 // experience in order to help improve future versions of the app.
 
 #ifndef CHROME_BROWSER_METRICS_METRICS_SERVICE_H_
 #define CHROME_BROWSER_METRICS_METRICS_SERVICE_H_
 
 #include <map>
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/gtest_prod_util.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/metrics/field_trial.h"
 #include "base/process_util.h"
 #include "chrome/browser/metrics/metrics_log.h"
 #include "chrome/browser/metrics/tracking_synchronizer_observer.h"
 #include "chrome/common/metrics/metrics_service_base.h"
 #include "chrome/installer/util/google_update_settings.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
+#include "content/public/browser/user_metrics.h"
 #include "net/url_request/url_fetcher_delegate.h"
 
 #if defined(OS_CHROMEOS)
 #include "chrome/browser/chromeos/external_metrics.h"
 #endif
 
 class BookmarkModel;
 class BookmarkNode;
 class MetricsReportingScheduler;
 class PrefService;
@@ skipping 27 matching lines @@
 struct ProcessDataSnapshot;
 }
 
 namespace webkit {
 struct WebPluginInfo;
 }
 
 class MetricsService
     : public chrome_browser_metrics::TrackingSynchronizerObserver,
       public content::NotificationObserver,
+      public content::UserMetricsObserver,
       public net::URLFetcherDelegate,
       public MetricsServiceBase {
  public:
   MetricsService();
   virtual ~MetricsService();
 
   // Starts the metrics system, turning on recording and uploading of metrics.
   // Should be called when starting up with metrics enabled, or when metrics
   // are turned on.
   void Start();
@@ skipping 46 matching lines @@
   // useful to allow some features to sleep, until the machine becomes active,
   // such as precluding UMA uploads unless there was recent activity.
   static void SetUpNotifications(content::NotificationRegistrar* registrar,
                                  content::NotificationObserver* observer);
 
   // Implementation of content::NotificationObserver
   virtual void Observe(int type,
                        const content::NotificationSource& source,
                        const content::NotificationDetails& details) OVERRIDE;
 
+  // Implementation of content::UserMetricsObserver
+  virtual void UserAction(const std::string& action) OVERRIDE;
+
   // Invoked when we get a WM_SESSIONEND. This places a value in prefs that is
   // reset when RecordCompletedSessionEnd is invoked.
   void RecordStartOfSessionEnd();
 
   // This should be called when the application is shutting down. It records
   // that session end was successful.
   void RecordCompletedSessionEnd();
 
 #if defined(OS_ANDROID) || defined(OS_IOS)
   // Called when the application is going into background mode.
@@ skipping 241 matching lines @@
 
   // Logs the initiation of a page load
   void LogLoadStarted();
 
   // Records a page load notification.
   void LogLoadComplete(int type,
                        const content::NotificationSource& source,
                        const content::NotificationDetails& details);
 
   // Checks whether a notification can be logged.
-  bool CanLogNotification(int type,
-                          const content::NotificationSource& source,
-                          const content::NotificationDetails& details);
+  bool CanLogNotification();
 
   // Sets the value of the specified path in prefs and schedules a save.
   void RecordBooleanPrefValue(const char* path, bool value);
 
   // Returns true if process of type |type| should be counted as a plugin
   // process, and false otherwise.
   static bool IsPluginProcess(content::ProcessType type);
 
   content::NotificationRegistrar registrar_;
 
@@ skipping 114 matching lines @@
   friend class extensions::ExtensionDownloader;
   friend class extensions::ManifestFetchData;
 
   // Returns true if prefs::kMetricsReportingEnabled is set.
   static bool IsMetricsReportingEnabled();
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(MetricsServiceHelper);
 };
 
 #endif  // CHROME_BROWSER_METRICS_METRICS_SERVICE_H_