mash: Move TrayTracing to //ash/common/system/chromeos

chrome/browser/ui/ash/system_tray_delegate_chromeos.cc

 // Copyright 2013 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.
 
 #include "chrome/browser/ui/ash/system_tray_delegate_chromeos.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 #include <set>
@@ skipping 1119 matching lines @@
 void SystemTrayDelegateChromeOS::OnAccessibilityModeChanged(
     ash::AccessibilityNotificationVisibility notify) {
   GetWmSystemTrayNotifier()->NotifyAccessibilityModeChanged(notify);
 }
 
 void SystemTrayDelegateChromeOS::UpdatePerformanceTracing() {
   if (!user_pref_registrar_)
     return;
   bool value = user_pref_registrar_->prefs()->GetBoolean(
       prefs::kPerformanceTracingEnabled);
-  GetSystemTrayNotifier()->NotifyTracingModeChanged(value);
+  GetWmSystemTrayNotifier()->NotifyTracingModeChanged(value);
 }
 
 // Overridden from InputMethodManager::Observer.
 void SystemTrayDelegateChromeOS::InputMethodChanged(
     input_method::InputMethodManager* manager,
     Profile* /* profile */,
     bool show_message) {
   GetWmSystemTrayNotifier()->NotifyRefreshIME();
 }
 
@@ skipping 187 matching lines @@
   LOG(WARNING) << "SystemTrayDelegateChromeOS::GetChildUserMessage call while "
                << "ENABLE_SUPERVISED_USERS undefined.";
   return base::string16();
 }
 
 ash::SystemTrayDelegate* CreateSystemTrayDelegate() {
   return new SystemTrayDelegateChromeOS();
 }
 
 }  // namespace chromeos