Refactor extension event distribution to use Values instead of JSON strings.

chrome/browser/extensions/window_event_router.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_WINDOW_EVENT_ROUTER_H_
 #define CHROME_BROWSER_EXTENSIONS_WINDOW_EVENT_ROUTER_H_
 
 #include "base/basictypes.h"
+#include "base/memory/scoped_ptr.h"
 #include "chrome/browser/extensions/window_controller_list_observer.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 #if defined(TOOLKIT_VIEWS)
 #include "ui/views/focus/widget_focus_manager.h"
 #elif defined(TOOLKIT_GTK)
 #include "ui/base/x/active_window_watcher_x_observer.h"
 #endif
 
 class Profile;
@@ skipping 39 matching lines @@
   virtual void Observe(int type,
                        const content::NotificationSource& source,
                        const content::NotificationDetails& details) OVERRIDE;
 
   // |window_controller| is NULL to indicate a focused window has lost focus.
   void OnActiveWindowChanged(WindowController* window_controller);
 
  private:
   void DispatchEvent(const char* event_name,
                      Profile* profile,
-                     base::ListValue* args);
+                     scoped_ptr<base::ListValue> args);
 
   content::NotificationRegistrar registrar_;
   bool initialized_;
 
   // The main profile that owns this event router.
   Profile* profile_;
 
   // The profile the currently focused window belongs to; either the main or
   // incognito profile or NULL (none of the above). We remember this in order
   // to correctly handle focus changes between non-OTR and OTR windows.
   Profile* focused_profile_;
 
   // The currently focused window. We keep this so as to avoid sending multiple
   // windows.onFocusChanged events with the same windowId.
   int focused_window_id_;
 
   DISALLOW_COPY_AND_ASSIGN(WindowEventRouter);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_WINDOW_EVENT_ROUTER_H_