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

chrome/browser/ui/ash/launcher/shell_window_launcher_item_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_SHELL_WINDOW_LAUNCHER_ITEM_CONTROLLER_H_
 #define CHROME_BROWSER_UI_ASH_LAUNCHER_SHELL_WINDOW_LAUNCHER_ITEM_CONTROLLER_H_
 
 #include <list>
 #include <string>
 
@@ skipping 33 matching lines @@
 
   const std::string& app_launcher_id() const { return app_launcher_id_; }
 
   // LauncherItemController overrides.
   virtual string16 GetTitle() OVERRIDE;
   virtual bool HasWindow(aura::Window* window) const OVERRIDE;
   virtual bool IsOpen() const OVERRIDE;
   virtual void Launch(int event_flags) OVERRIDE;
   virtual void Activate() OVERRIDE;
   virtual void Close() OVERRIDE;
-  virtual void Clicked() OVERRIDE;
+  virtual void Clicked(const ui::Event& event) OVERRIDE;
   virtual void OnRemoved() OVERRIDE {}
   virtual void LauncherItemChanged(
       int model_index,
       const ash::LauncherItem& old_item) OVERRIDE {}
   virtual ChromeLauncherAppMenuItems* GetApplicationList() OVERRIDE;
 
   // Get the number of running applications/incarnations of this.
   size_t shell_window_count() const { return shell_windows_.size(); }
 
   // Activates the window at position |index|.
@@ skipping 15 matching lines @@
   ShellWindowList shell_windows_;
 
   // The launcher id associated with this set of windows. There is one
   // AppLauncherItemController for each |app_launcher_id_|.
   const std::string app_launcher_id_;
 
   DISALLOW_COPY_AND_ASSIGN(ShellWindowLauncherItemController);
 };
 
 #endif  // CHROME_BROWSER_UI_ASH_LAUNCHER_SHELL_WINDOW_LAUNCHER_ITEM_CONTROLLER_H_