Extension Commands changed by the user now take effect immediately.

chrome/browser/extensions/extension_keybinding_registry.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_EXTENSIONS_EXTENSION_KEYBINDING_REGISTRY_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_KEYBINDING_REGISTRY_H_
 #pragma once
 
 #include <string>
 
@@ skipping 20 matching lines @@
   // Enables/Disables general shortcut handing in Chrome. Implemented in
   // platform-specific ExtensionKeybindingsRegistry* files.
   static void SetShortcutHandlingSuspended(bool suspended);
 
   // Overridden from content::NotificationObserver:
   virtual void Observe(int type,
                        const content::NotificationSource& source,
                        const content::NotificationDetails& details) OVERRIDE;
 
  protected:
   // Add extension keybinding for the events defined by the |extension|.

[Yoyo Zhou, 2012/06/28 22:40:51]

Comments need to be updated.

[Finnur, 2012/06/28 22:49:01]

Ah, right! 

On 2012/06/28 22:40:51, Yoyo Zhou wrote:

   virtual void AddExtensionKeybinding(
-      const Extension* extension) = 0;
+      const Extension* extension,
+      const std::string& command_name) = 0;
   // Remove extension bindings for |extension|.
   virtual void RemoveExtensionKeybinding(
-      const Extension* extension) = 0;
+      const Extension* extension,
+      const std::string& command_name) = 0;
 
   // Make sure all extensions registered have keybindings added.
   void Init();
 
   // Whether to ignore this command. Only browserAction commands and pageAction
   // commands are currently ignored, since they are handled elsewhere.
   bool ShouldIgnoreCommand(const std::string& command) const;
 
  private:
   // The content notification registrar for listening to extension events.
   content::NotificationRegistrar registrar_;
 
   // Weak pointer to the our profile. Not owned by us.
   Profile* profile_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionKeybindingRegistry);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_KEYBINDING_REGISTRY_H_