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diff --git a/chrome/browser/dom_ui/app_launcher_handler.h b/chrome/browser/dom_ui/app_launcher_handler.h
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+++ b/chrome/browser/dom_ui/app_launcher_handler.h
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+// Copyright (c) 2010 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_DOM_UI_APP_LAUNCHER_HANDLER_H_
+#define CHROME_BROWSER_DOM_UI_APP_LAUNCHER_HANDLER_H_
+
+#include "chrome/browser/dom_ui/dom_ui.h"
+#include "chrome/common/notification_registrar.h"
+
+class Extension;
+class ExtensionsService;
+
+namespace gfx {
+  class Rect;
+}
+
+// The handler for Javascript messages related to the "apps" view.
+class AppLauncherHandler
+    : public DOMMessageHandler,
+      public NotificationObserver {
+ public:
+  explicit AppLauncherHandler(ExtensionsService* extension_service);
+  virtual ~AppLauncherHandler();
+
+  // DOMMessageHandler implementation.
+  virtual DOMMessageHandler* Attach(DOMUI* dom_ui);
+  virtual void RegisterMessages();
+
+  // NotificationObserver
+  virtual void Observe(NotificationType type,
+                      const NotificationSource& source,
+                      const NotificationDetails& details);
+
+  // Populate a dictionary with the information from an extension.
+  static void CreateAppInfo(Extension* extension, DictionaryValue* value);
+
+  // Callback for the "getApps" message.
+  void HandleGetApps(const Value* value);
+
+  // Callback for the "launchApp" message.
+  void HandleLaunchApp(const Value* value);
+
+  // Callback for the "uninstallApp" message.
+  void HandleUninstallApp(const Value* value);
+
+ private:
+  // Starts the animation of the app icon.
+  void AnimateAppIcon(Extension* extension, const gfx::Rect& rect);
+
+  // The apps are represented in the extensions model.
+  scoped_refptr<ExtensionsService> extensions_service_;
+
+  // We monitor changes to the extension system so that we can reload the apps
+  // when necessary.
+  NotificationRegistrar registrar_;
+
+  DISALLOW_COPY_AND_ASSIGN(AppLauncherHandler);
+};
+
+#endif  // CHROME_BROWSER_DOM_UI_APP_LAUNCHER_HANDLER_H_