Revert of chromeos: Move ownership of system tray width from chrome to ash

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 591 matching lines @@
   *session_start_time = session_start_time_;
   return have_session_start_time_;
 }
 
 bool SystemTrayDelegateChromeOS::GetSessionLengthLimit(
     base::TimeDelta* session_length_limit) {
   *session_length_limit = session_length_limit_;
   return have_session_length_limit_;
 }
 
+int SystemTrayDelegateChromeOS::GetSystemTrayMenuWidth() {
+  return l10n_util::GetLocalizedContentsWidthInPixels(
+      IDS_SYSTEM_TRAY_MENU_BUBBLE_WIDTH_PIXELS);
+}
+
 void SystemTrayDelegateChromeOS::ActiveUserWasChanged() {
   SetProfile(ProfileManager::GetActiveUserProfile());
   GetSystemTrayNotifier()->NotifyUserUpdate();
 }
 
 bool SystemTrayDelegateChromeOS::IsSearchKeyMappedToCapsLock() {
   return search_key_mapped_to_ == input_method::kCapsLockKey;
 }
 
 void SystemTrayDelegateChromeOS::AddCustodianInfoTrayObserver(
@@ skipping 481 matching lines @@
   LOG(WARNING) << "SystemTrayDelegateChromeOS::GetChildUserMessage call while "
                << "ENABLE_SUPERVISED_USERS undefined.";
   return base::string16();
 }
 
 ash::SystemTrayDelegate* CreateSystemTrayDelegate() {
   return new SystemTrayDelegateChromeOS();
 }
 
 }  // namespace chromeos