Gather stability prefs into managing objects.

components/metrics/metrics_service.h

 // Copyright 2014 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 COMPONENTS_METRICS_METRICS_SERVICE_H_
 #define COMPONENTS_METRICS_METRICS_SERVICE_H_
 
@@ skipping 314 matching lines @@
   // Prepares the initial metrics log, which includes startup histograms and
   // profiler data, as well as incremental stability-related metrics.
   void PrepareInitialMetricsLog();
 
   // Uploads the currently staged log (which must be non-null).
   void SendStagedLog();
 
   // Called after transmission completes (either successfully or with failure).
   void OnLogUploadComplete(int response_code);
 
-  // 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(bool end_completed);
 
   // Notifies observers on a synthetic trial list change.
   void NotifySyntheticTrialObservers();
 
@@ skipping 111 matching lines @@
   // 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_;
 
   DISALLOW_COPY_AND_ASSIGN(MetricsService);
 };
 
 }  // namespace metrics
 
 #endif  // COMPONENTS_METRICS_METRICS_SERVICE_H_