Create PluginMetricsProvider class.

chrome/browser/metrics/metrics_log.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 set of user experience metrics data recorded by
 // the MetricsService.  This is the unit of data that is sent to the server.
 
 #ifndef CHROME_BROWSER_METRICS_METRICS_LOG_H_
 #define CHROME_BROWSER_METRICS_METRICS_LOG_H_
 
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "chrome/browser/metrics/extension_metrics.h"
 #include "chrome/common/variations/variations_util.h"
-#include "chrome/installer/util/google_update_settings.h"
 #include "components/metrics/metrics_log_base.h"
 #include "ui/gfx/size.h"
 
 class HashedExtensionMetrics;
 class PrefService;
-class PrefRegistrySimple;
 
 #if defined(OS_CHROMEOS)
 class MetricsLogChromeOS;
 #endif
 
 namespace base {
 class DictionaryValue;
 }
 
 namespace content {
@@ skipping 21 matching lines @@
   // |client| is used to interact with the embedder.
   // Note: |this| instance does not take ownership of the |client|, but rather
   // stores a weak pointer to it. The caller should ensure that the |client| is
   // valid for the lifetime of this class.
   MetricsLog(const std::string& client_id,
              int session_id,
              LogType log_type,
              metrics::MetricsServiceClient* client);
   virtual ~MetricsLog();
 
-  static void RegisterPrefs(PrefRegistrySimple* registry);
-
   // Records the current operating environment, including metrics provided by
   // the specified set of |metrics_providers|.  Takes the list of installed
   // plugins, Google Update statistics, and synthetic trial IDs as parameters
   // because those can't be obtained synchronously from the UI thread.
   // A synthetic trial is one that is set up dynamically by code in Chrome. For
   // example, a pref may be mapped to a synthetic trial such that the group
   // is determined by the pref value.
   void RecordEnvironment(
       const std::vector<metrics::MetricsProvider*>& metrics_providers,
-      const std::vector<content::WebPluginInfo>& plugin_list,
       const std::vector<variations::ActiveGroupId>& synthetic_trials);
 
   // Loads the environment proto that was saved by the last RecordEnvironment()
   // call from prefs and clears the pref value. Returns true on success or false
   // if there was no saved environment in prefs or it could not be decoded.
   bool LoadSavedEnvironmentFromPrefs();
 
   // Records the passed profiled data, which should be a snapshot of the
   // browser's profiled performance during startup for a single process.
   void RecordProfilerData(
@@ skipping 51 matching lines @@
   FRIEND_TEST_ALL_PREFIXES(MetricsLogTest, ChromeOSStabilityData);
 
   // Returns true if the environment has already been filled in by a call to
   // RecordEnvironment() or LoadSavedEnvironmentFromPrefs().
   bool HasEnvironment() const;
 
   // Returns true if the stability metrics have already been filled in by a
   // call to RecordStabilityMetrics().
   bool HasStabilityMetrics() const;
 
-  // Within stability group, write plugin crash stats.
-  void WritePluginStabilityElements(PrefService* pref);
-
   // Within the stability group, write required attributes.
   void WriteRequiredStabilityAttributes(PrefService* pref);
 
   // Within the stability group, write attributes that need to be updated asap
   // and can't be delayed until the user decides to restart chromium.
   // Delaying these stats would bias metrics away from happy long lived
   // chromium processes (ones that don't crash, and keep on running).
   void WriteRealtimeStabilityAttributes(PrefService* pref,
                                         base::TimeDelta incremental_uptime,
                                         base::TimeDelta uptime);
 
-  // Writes the list of installed plugins.
-  void WritePluginList(const std::vector<content::WebPluginInfo>& plugin_list);
-
   // Used to interact with the embedder. Weak pointer; must outlive |this|
   // instance.
   metrics::MetricsServiceClient* const client_;
 
   // The time when the current log was created.
   const base::TimeTicks creation_time_;
 
   // For including information on which extensions are installed in reports.
   HashedExtensionMetrics extension_metrics_;
 
   DISALLOW_COPY_AND_ASSIGN(MetricsLog);
 };
 
 #endif  // CHROME_BROWSER_METRICS_METRICS_LOG_H_