Make the metro viewer responsible for relaunching browser in desktop mode.

ui/aura/remote_root_window_host_win.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 UI_AURA_REMOTE_ROOT_WINDOW_HOST_WIN_H_
 #define UI_AURA_REMOTE_ROOT_WINDOW_HOST_WIN_H_
 
 #include <vector>
 
 #include "base/callback.h"
@@ skipping 80 matching lines @@
 
   // Called when the remote process has established its IPC connection.
   // The |host| can be used when we need to send a message to it.
   void Connected(IPC::Sender* host);
   // Called when the remote process has closed its IPC connection.
   void Disconnected();
 
   // Called when we have a message from the remote process.
   bool OnMessageReceived(const IPC::Message& message);
 
+  void HandleOpenURLOnDesktop(const base::FilePath& shortcut,
+                              const base::string16& url);
+
   void HandleOpenFile(const base::string16& title,
                       const base::FilePath& default_path,
                       const base::string16& filter,
                       const OpenFileCompletion& on_success,
                       const FileSelectionCanceled& on_failure);
 
   void HandleOpenMultipleFiles(const base::string16& title,
                                const base::FilePath& default_path,
                                const base::string16& filter,
                                const OpenMultipleFilesCompletion& on_success,
@@ skipping 107 matching lines @@
 
   // Tracking last click event for synthetically generated mouse events.
   scoped_ptr<ui::MouseEvent> last_mouse_click_event_;
 
   DISALLOW_COPY_AND_ASSIGN(RemoteRootWindowHostWin);
 };
 
 }  // namespace aura
 
 #endif  // UI_AURA_REMOTE_ROOT_WINDOW_HOST_WIN_H_