Reland Track the active ExtensionKeybindingRegistry and make it available to EventRewriter.

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_
 
 #include <list>
 #include <map>
 #include <string>
@@ skipping 48 matching lines @@
 
   // Enables/Disables general shortcut handling in Chrome. Implemented in
   // platform-specific ExtensionKeybindingsRegistry* files.
   static void SetShortcutHandlingSuspended(bool suspended);
 
   // Execute the command bound to |accelerator| and provided by the extension
   // with |extension_id|, if it exists.
   void ExecuteCommand(const std::string& extension_id,
                       const ui::Accelerator& accelerator);
 
+  // Check whether the specified |accelerator| has been registered.
+  bool IsAcceleratorRegistered(const ui::Accelerator& accelerator) const;
+
  protected:
   // Add extension keybinding for the events defined by the |extension|.
   // |command_name| is optional, but if not blank then only the command
   // specified will be added.
   virtual void AddExtensionKeybinding(
       const Extension* extension,
       const std::string& command_name) = 0;
   // Remove extension bindings for |extension|. |command_name| is optional,
   // but if not blank then only the command specified will be removed.
   void RemoveExtensionKeybinding(
@@ skipping 13 matching lines @@
   bool ShouldIgnoreCommand(const std::string& command) const;
 
   // Fire event targets which the specified |accelerator| is binding with.
   // Returns true if we can find the appropriate event targets.
   bool NotifyEventTargets(const ui::Accelerator& accelerator);
 
   // Notifies appropriate parties that a command has been executed.
   void CommandExecuted(const std::string& extension_id,
                        const std::string& command);
 
-  // Check whether the specified |accelerator| has been registered.
-  bool IsAcceleratorRegistered(const ui::Accelerator& accelerator) const;
-
   // Add event target (extension_id, command name) to the target list of
   // |accelerator|. Note that only media keys can have more than one event
   // target.
   void AddEventTarget(const ui::Accelerator& accelerator,
                       const std::string& extension_id,
                       const std::string& command_name);
 
   // Get the first event target by the given |accelerator|. For a valid
   // accelerator it should have only one event target, except for media keys.
   // Returns true if we can find it, |extension_id| and |command_name| will be
@@ skipping 58 matching lines @@
   // Listen to extension load, unloaded notifications.
   ScopedObserver<ExtensionRegistry, ExtensionRegistryObserver>
       extension_registry_observer_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionKeybindingRegistry);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_KEYBINDING_REGISTRY_H_