Create PluginMetricsProvider class.

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_
 
@@ skipping 21 matching lines @@
 #include "components/metrics/metrics_service_observer.h"
 #include "components/variations/active_field_trials.h"
 #include "content/public/browser/browser_child_process_observer.h"
 #include "content/public/browser/user_metrics.h"
 #include "net/url_request/url_fetcher_delegate.h"
 
 class GoogleUpdateMetricsProviderWin;
 class MetricsReportingScheduler;
 class PrefService;
 class PrefRegistrySimple;
+class PluginMetricsProvider;
 
 namespace base {
 class DictionaryValue;
 class HistogramSamples;
 class MessageLoopProxy;
 }
 
 namespace variations {
 struct ActiveGroupId;
 }
 
 namespace content {
-struct WebPluginInfo;
 }
 
 namespace metrics {
 class MetricsServiceClient;
 class MetricsStateManager;
 }
 
 namespace net {
 class URLFetcher;
 }
@@ skipping 99 matching lines @@
   // HistogramFlattener:
   virtual void RecordDelta(const base::HistogramBase& histogram,
                            const base::HistogramSamples& snapshot) OVERRIDE;
   virtual void InconsistencyDetected(
       base::HistogramBase::Inconsistency problem) OVERRIDE;
   virtual void UniqueInconsistencyDetected(
       base::HistogramBase::Inconsistency problem) OVERRIDE;
   virtual void InconsistencyDetectedInLoggedCount(int amount) OVERRIDE;
 
   // Implementation of content::BrowserChildProcessObserver
-  virtual void BrowserChildProcessHostConnected(
-      const content::ChildProcessData& data) OVERRIDE;
   virtual void BrowserChildProcessCrashed(
       const content::ChildProcessData& data) OVERRIDE;
-  virtual void BrowserChildProcessInstanceCreated(
-      const content::ChildProcessData& data) OVERRIDE;
 
   // This should be called when the application is not idle, i.e. the user seems
   // to be interacting with the application.
   void OnApplicationNotIdle();
 
   // 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
@@ skipping 77 matching lines @@
     SENDING_INITIAL_METRICS_LOG,    // Initial metrics log being sent.
     SENDING_OLD_LOGS,               // Sending unsent logs from last session.
     SENDING_CURRENT_LOGS,           // Sending ongoing logs as they accrue.
   };
 
   enum ShutdownCleanliness {
     CLEANLY_SHUTDOWN = 0xdeadbeef,
     NEED_TO_SHUTDOWN = ~CLEANLY_SHUTDOWN
   };
 
-  struct ChildProcessStats;
-
   typedef std::vector<SyntheticTrialGroup> SyntheticTrialGroups;
 
   // First part of the init task. Called on the FILE thread to load hardware
   // class information.
   static void InitTaskGetHardwareClass(base::WeakPtr<MetricsService> self,
                                        base::MessageLoopProxy* target_loop);
 
   // Callback from InitTaskGetHardwareClass() that continues the init task by
   // loading plugin information.
   void OnInitTaskGotHardwareClass(const std::string& hardware_class);
 
-  // Callback from PluginService::GetPlugins() that continues the init task by
-  // launching a task to gather Google Update statistics.
-  void OnInitTaskGotPluginInfo(
-      const std::vector<content::WebPluginInfo>& plugins);
+  // Called after the Plugin init task has been completed that continues the
+  // init task by launching a task to gather Google Update statistics.
+  void OnInitTaskGotPluginInfo();
 
   // Called after GoogleUpdate init task has been completed that continues the
   // init task by loading profiler data.
   void OnInitTaskGotGoogleUpdateData();
 
   void OnUserAction(const std::string& action);
 
   // TrackingSynchronizerObserver:
   virtual void ReceivedProfilerData(
       const tracked_objects::ProcessDataSnapshot& process_data,
@@ skipping 89 matching lines @@
   // Reads, increments and then sets the specified integer preference.
   void IncrementPrefValue(const char* path);
 
   // Reads, increments and then sets the specified long preference that is
   // stored as a string.
   void IncrementLongPrefsValue(const char* path);
 
   // Records that the browser was shut down cleanly.
   void LogCleanShutdown();
 
-  // Returns reference to ChildProcessStats corresponding to |data|.
-  ChildProcessStats& GetChildProcessStats(
-      const content::ChildProcessData& data);
-
-  // Saves plugin-related updates from the in-object buffer to Local State
-  // for retrieval next time we send a Profile log (generally next launch).
-  void RecordPluginChanges(PrefService* pref);
-
   // Records state that should be periodically saved, like uptime and
   // buffered plugin stability statistics.
   void RecordCurrentState(PrefService* pref);
 
   // Checks whether events should currently be logged.
   bool ShouldLogEvents();
 
   // 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(int process_type);
-
   // Returns a list of synthetic field trials that were active for the entire
   // duration of the current log.
   void GetCurrentSyntheticFieldTrials(
       std::vector<variations::ActiveGroupId>* synthetic_trials);
 
   // Creates a new MetricsLog instance with the given |log_type|.
   scoped_ptr<MetricsLog> CreateLog(MetricsLog::LogType log_type);
 
   // Record complete list of histograms into the current log.
   // Called when we close a log.
@@ skipping 38 matching lines @@
 
   // Whether the initial stability log has been recorded during startup.
   bool has_initial_stability_log_;
 
   // Chrome OS hardware class (e.g., hardware qualification ID). This
   // class identifies the configured system components such as CPU,
   // WiFi adapter, etc.  For non Chrome OS hosts, this will be an
   // empty string.
   std::string hardware_class_;
 
-  // The list of plugins which was retrieved on the file thread.
-  std::vector<content::WebPluginInfo> plugins_;
+#if defined(ENABLE_PLUGINS)
+  PluginMetricsProvider* plugin_metrics_provider_;
+#endif
 
 #if defined(OS_WIN)
   GoogleUpdateMetricsProviderWin* google_update_metrics_provider_;
 #endif
 
   // The initial metrics log, used to record startup metrics (histograms and
   // profiler data). Note that if a crash occurred in the previous session, an
   // initial stability log may be sent before this.
   scoped_ptr<MetricsLog> initial_metrics_log_;
 
   // The outstanding transmission appears as a URL Fetch operation.
   scoped_ptr<net::URLFetcher> current_fetch_;
 
   // Whether the MetricsService object has received any notifications since
   // the last time a transmission was sent.
   bool idle_since_last_transmission_;
 
   // A number that identifies the how many times the app has been launched.
   int session_id_;
 
   // Maps WebContentses (corresponding to tabs) or Browsers (corresponding to
   // Windows) to a unique integer that we will use to identify them.
   // |next_window_id_| is used to track which IDs we have used so far.
   typedef std::map<uintptr_t, int> WindowMap;
   WindowMap window_map_;
   int next_window_id_;
 
-  // Buffer of child process notifications for quick access.
-  std::map<base::string16, ChildProcessStats> child_process_stats_buffer_;
-
   // Weak pointers factory used to post task on different threads. All weak
   // pointers managed by this factory have the same lifetime as MetricsService.
   base::WeakPtrFactory<MetricsService> self_ptr_factory_;
 
   // Weak pointers factory used for saving state. All weak pointers managed by
   // this factory are invalidated in ScheduleNextStateSave.
   base::WeakPtrFactory<MetricsService> state_saver_factory_;
 
   // The scheduler for determining when uploads should happen.
   scoped_ptr<MetricsReportingScheduler> scheduler_;
@@ skipping 28 matching lines @@
   FRIEND_TEST_ALL_PREFIXES(MetricsServiceTest, IsPluginProcess);
   FRIEND_TEST_ALL_PREFIXES(MetricsServiceTest, MetricsServiceObserver);
   FRIEND_TEST_ALL_PREFIXES(MetricsServiceTest,
                            PermutedEntropyCacheClearedWhenLowEntropyReset);
   FRIEND_TEST_ALL_PREFIXES(MetricsServiceTest, RegisterSyntheticTrial);
 
   DISALLOW_COPY_AND_ASSIGN(MetricsService);
 };
 
 #endif  // CHROME_BROWSER_METRICS_METRICS_SERVICE_H_