Consolidates accessing and setting the UMA pref to be within metrics code

chrome/browser/ui/webui/options/browser_options_handler.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.
 
 #ifndef CHROME_BROWSER_UI_WEBUI_OPTIONS_BROWSER_OPTIONS_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_OPTIONS_BROWSER_OPTIONS_HANDLER_H_
 
 #include <vector>
 
 #include "base/basictypes.h"
@@ skipping 309 matching lines @@
 
   // Setup the UI specific to managing supervised users.
   void SetupManagingSupervisedUsers();
 
   // Setup the UI for Easy Unlock.
   void SetupEasyUnlock();
 
   // Setup the UI for showing which settings are extension controlled.
   void SetupExtensionControlledIndicators();
 
+  // Setup the value and the disabled property for metrics reporting.
+  void SetupMetricsReportingCheckbox();
+
+  // Passes forward the request to change MetricsReportingEnabled.

[Alexei Svitkine (slow), 2014/09/05 20:50:25]

Nit: I suggest using a comment similar to the one for
VirtualKeyboardChangeCallback() function above.

[gayane -on leave until 09-2017, 2014/09/08 18:32:46]

Done.

+  void HandleMetricsReportingChange(const base::ListValue* args);
+
+  // Notifies the result of MetricsReportingEnabled change to Javascript layer.
+  void MetricsReportingChangeCallback(bool success);
+
 #if defined(OS_CHROMEOS)
   // Setup the accessibility features for ChromeOS.
   void SetupAccessibilityFeatures();
 #endif
 
   // Returns a newly created dictionary with a number of properties that
   // correspond to the status of sync.
   scoped_ptr<base::DictionaryValue> GetSyncStateDictionary();
 
   scoped_refptr<ShellIntegration::DefaultBrowserWorker> default_browser_worker_;
@@ skipping 22 matching lines @@
 
   // Used to get WeakPtr to self for use on the UI thread.
   base::WeakPtrFactory<BrowserOptionsHandler> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserOptionsHandler);
 };
 
 }  // namespace options
 
 #endif  // CHROME_BROWSER_UI_WEBUI_OPTIONS_BROWSER_OPTIONS_HANDLER_H_