Move the panel to the root window where the mouse click occurred.

chrome/browser/ui/ash/launcher/chrome_launcher_controller.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_UI_ASH_LAUNCHER_CHROME_LAUNCHER_CONTROLLER_H_
 #define CHROME_BROWSER_UI_ASH_LAUNCHER_CHROME_LAUNCHER_CONTROLLER_H_
 
 #include <string>
 
 #include "ash/launcher/launcher_delegate.h"
@@ skipping 232 matching lines @@
   virtual void SetRefocusURLPatternForTest(ash::LauncherID id,
                                            const GURL& url) = 0;
 
   // Returns the extension identified by |app_id|.
   virtual const extensions::Extension* GetExtensionForAppID(
       const std::string& app_id) = 0;
 
   // ash::LauncherDelegate overrides:
   virtual void OnBrowserShortcutClicked(int event_flags) OVERRIDE = 0;
   virtual void ItemClicked(const ash::LauncherItem& item,
-                           int event_flags) OVERRIDE = 0;
+                           const ui::Event& event) OVERRIDE = 0;
   virtual int GetBrowserShortcutResourceId() OVERRIDE = 0;
   virtual string16 GetTitle(const ash::LauncherItem& item) OVERRIDE = 0;
   virtual ui::MenuModel* CreateContextMenu(
       const ash::LauncherItem& item, aura::RootWindow* root) OVERRIDE = 0;
   virtual ui::MenuModel* CreateApplicationMenu(
       const ash::LauncherItem& item) OVERRIDE = 0;
   virtual ash::LauncherID GetIDByWindow(aura::Window* window) OVERRIDE = 0;
   virtual bool IsDraggable(const ash::LauncherItem& item) OVERRIDE = 0;
 
   // ash::AppIconLoader overrides:
@@ skipping 19 matching lines @@
   virtual void SetAppTabHelperForTest(AppTabHelper* helper) = 0;
   virtual void SetAppIconLoaderForTest(ash::AppIconLoader* loader) = 0;
   virtual const std::string& GetAppIdFromLauncherIdForTest(
       ash::LauncherID id) = 0;
 
  private:
   static ChromeLauncherController* instance_;
 };
 
 #endif  // CHROME_BROWSER_UI_ASH_LAUNCHER_CHROME_LAUNCHER_CONTROLLER_H_