Refactor MetricsLogChromeOS to ChromeOSMetricsProvider.

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/common/variations/variations_util.h"
 #include "components/metrics/metrics_log_base.h"
 #include "ui/gfx/size.h"
 
 class PrefService;
 
-#if defined(OS_CHROMEOS)
-class MetricsLogChromeOS;
-#endif
-
 namespace base {
 class DictionaryValue;
 }
 
 namespace content {
 struct WebPluginInfo;
 }
 
 namespace metrics {
 class MetricsProvider;
@@ skipping 71 matching lines @@
   // Exposed for the sake of mocking in test code.
 
   // Returns the PrefService from which to log metrics data.
   virtual PrefService* GetPrefService();
 
   // Fills |field_trial_ids| with the list of initialized field trials name and
   // group ids.
   virtual void GetFieldTrialIds(
       std::vector<variations::ActiveGroupId>* field_trial_ids) const;
 
-  // Exposed to allow dependency injection for tests.
-#if defined(OS_CHROMEOS)
-  scoped_ptr<MetricsLogChromeOS> metrics_log_chromeos_;
-#endif
-
  private:
   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;
@@ skipping 13 matching lines @@
   // instance.
   metrics::MetricsServiceClient* const client_;
 
   // The time when the current log was created.
   const base::TimeTicks creation_time_;
 
   DISALLOW_COPY_AND_ASSIGN(MetricsLog);
 };
 
 #endif  // CHROME_BROWSER_METRICS_METRICS_LOG_H_