Refactor GlobalShortcutListener.

chrome/browser/extensions/global_shortcut_listener_mac.h

Index: chrome/browser/extensions/global_shortcut_listener_mac.h
diff --git a/chrome/browser/extensions/global_shortcut_listener_mac.h b/chrome/browser/extensions/global_shortcut_listener_mac.h
index 8c1b5dbfbbe0189effcea5c70c17249c75ff42fb..944450c4a3d5cfbe8e6574337ee694193bfdcdac 100644
--- a/chrome/browser/extensions/global_shortcut_listener_mac.h
+++ b/chrome/browser/extensions/global_shortcut_listener_mac.h
@@ -18,22 +18,18 @@ class GlobalShortcutListenerMac : public GlobalShortcutListener {
  public:
   virtual ~GlobalShortcutListenerMac();
 
-  virtual void StartListening() OVERRIDE;
-  virtual void StopListening() OVERRIDE;
-
  private:
   friend struct base::DefaultLazyInstanceTraits<GlobalShortcutListenerMac>;
 
   GlobalShortcutListenerMac();
 
-  // Register an |accelerator| with the particular |observer|.
-  virtual void RegisterAccelerator(
-      const ui::Accelerator& accelerator,
-      GlobalShortcutListener::Observer* observer) OVERRIDE;
-  // Unregister an |accelerator| with the particular |observer|.
-  virtual void UnregisterAccelerator(
-      const ui::Accelerator& accelerator,
-      GlobalShortcutListener::Observer* observer) OVERRIDE;
+  // GlobalShortcutListener implementation.
+  virtual void StartListening() OVERRIDE;
+  virtual void StopListening() OVERRIDE;
+  virtual bool RegisterAcceleratorImpl(
+      const ui::Accelerator& accelerator) OVERRIDE;
+  virtual void UnregisterAcceleratorImpl(
+      const ui::Accelerator& accelerator) OVERRIDE;
 
   // Whether this object is listening for global shortcuts.
   bool is_listening_;