Make sure that Content Handled application can be connected multiple times.

mojo/shell/view_manager_loader.h

 // Copyright 2014 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 MOJO_SHELL_VIEW_MANAGER_LOADER_H_
 #define MOJO_SHELL_VIEW_MANAGER_LOADER_H_
 
 #include "base/macros.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/scoped_vector.h"
@@ skipping 14 matching lines @@
                           public ApplicationDelegate,
                           public InterfaceFactory<ViewManagerInitService> {
  public:
   ViewManagerLoader();
   virtual ~ViewManagerLoader();
 
  private:
   // ApplicationLoader overrides:
   virtual void Load(ApplicationManager* manager,
                     const GURL& url,
-                    scoped_refptr<LoadCallbacks> callbacks) override;
+                    LoadCallback callback) override;
   virtual void OnApplicationError(ApplicationManager* manager,
                                   const GURL& url) override;
 
   // ApplicationDelegate overrides.
   virtual bool ConfigureIncomingConnection(
       mojo::ApplicationConnection* connection) override;
 
   // InterfaceFactory<ViewManagerInitService> overrides.
   virtual void Create(
       ApplicationConnection* connection,
       InterfaceRequest<ViewManagerInitService> request) override;
 
   ScopedVector<Application> apps_;
   service::ViewManagerInitServiceContext context_;
 
   DISALLOW_COPY_AND_ASSIGN(ViewManagerLoader);
 };
 
 }  // namespace shell
 }  // namespace mojo
 
 #endif  // MOJO_SHELL_VIEW_MANAGER_LOADER_H_