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

chrome/browser/ui/webui/options/browser_options_handler.h

Index: chrome/browser/ui/webui/options/browser_options_handler.h
diff --git a/chrome/browser/ui/webui/options/browser_options_handler.h b/chrome/browser/ui/webui/options/browser_options_handler.h
index 9a79d55b37e3fef3e83aba61af4ed9ef8a407d7b..a0b78ee614f61cc4d7bdb067d4c6895a640d65a6 100644
--- a/chrome/browser/ui/webui/options/browser_options_handler.h
+++ b/chrome/browser/ui/webui/options/browser_options_handler.h
@@ -332,6 +332,20 @@ class BrowserOptionsHandler
   // Setup the UI for showing which settings are extension controlled.
   void SetupExtensionControlledIndicators();
 
+  // Setup the value and the disabled property for metrics reporting for (except
+  // CrOS and Android).
+  void SetupMetricsReportingCheckbox();
+
+  // Called when the MetricsReportingEnabled checkbox values are changed.
+  // |args| will contain the checkbox checked state as a boolean.
+  void HandleMetricsReportingChange(const base::ListValue* args);
+
+  // Notifies the result of MetricsReportingEnabled change to Javascript layer.
+  void MetricsReportingChangeCallback(bool enabled);
+
+  // Calls a Javascript function to set the state of MetricsReporting checkbox.
+  void SetMetricsReportingCheckbox(bool checked, bool disabled);
+
 #if defined(OS_CHROMEOS)
   // Setup the accessibility features for ChromeOS.
   void SetupAccessibilityFeatures();