Issue 32919: Update the Zoom NSMenuItems (Zoom-In/Zoom-out/Actual-Size) when the zoom state changes.

chrome/browser/ui/browser_command_controller.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_BROWSER_COMMAND_CONTROLLER_H_
 #define CHROME_BROWSER_UI_BROWSER_COMMAND_CONTROLLER_H_
 
 #include <vector>
 
 #include "base/prefs/pref_change_registrar.h"
@@ skipping 38 matching lines @@
 
   // Gets the last blocked command after calling SetBlockCommandExecution(true).
   // Returns the command id or -1 if there is no command blocked. The
   // disposition type of the command will be stored in |*disposition| if it's
   // not NULL.
   int GetLastBlockedCommand(WindowOpenDisposition* disposition);
 
   // Notifies the controller that state has changed in one of the following
   // areas and it should update command states.
   void TabStateChanged();
+  void ZoomStateChanged();
   void ContentRestrictionsChanged();
   void FullscreenStateChanged();
   void PrintingStateChanged();
   void LoadingStateChanged(bool is_loading, bool force);
 
   // Shared state updating: these functions are static and public to share with
   // outside code.
 
   // Updates the open-file state.
   static void UpdateOpenFileState(CommandUpdater* command_updater);
@@ skipping 37 matching lines @@
 
   // Initialize state for all browser commands.
   void InitCommandState();
 
   // Update commands whose state depends on incognito mode availability.
   void UpdateCommandsForIncognitoAvailability();
 
   // Update commands whose state depends on the tab's state.
   void UpdateCommandsForTabState();
 
+  void UpdateCommandsForZoomState();
+
   // Updates commands when the content's restrictions change.
   void UpdateCommandsForContentRestrictionState();
 
   // Updates commands for enabling developer tools.
   void UpdateCommandsForDevTools();
 
   // Updates commands for bookmark editing.
   void UpdateCommandsForBookmarkEditing();
 
   // Updates commands that affect the bookmark bar.
@@ skipping 54 matching lines @@
   PrefChangeRegistrar profile_pref_registrar_;
   PrefChangeRegistrar local_pref_registrar_;
   BooleanPrefMember pref_signin_allowed_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserCommandController);
 };
 
 }  // namespace chrome
 
 #endif  // CHROME_BROWSER_UI_BROWSER_COMMAND_CONTROLLER_H_