First cut at "content handling" support in Mojo.

mojo/shell/network_service_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_NETWORK_SERVICE_LOADER_H_
 #define MOJO_SHELL_NETWORK_SERVICE_LOADER_H_
 
 #include <map>
 
 #include "base/containers/scoped_ptr_hash_map.h"
@@ skipping 16 matching lines @@
                              public InterfaceFactory<NetworkService> {
  public:
   NetworkServiceLoader();
   virtual ~NetworkServiceLoader();
 
  private:
   // ServiceLoader overrides:
   virtual void LoadService(
       ServiceManager* manager,
       const GURL& url,
-      ScopedMessagePipeHandle shell_handle) OVERRIDE;
+      scoped_refptr<LoadServiceCallbacks> callbacks) OVERRIDE;
   virtual void OnServiceError(ServiceManager* manager,
                               const GURL& url) OVERRIDE;
 
   // ApplicationDelegate overrides.
   virtual void Initialize(ApplicationImpl* app) OVERRIDE;
   virtual bool ConfigureIncomingConnection(ApplicationConnection* connection)
       OVERRIDE;
 
   // InterfaceFactory<NetworkService> overrides.
   virtual void Create(ApplicationConnection* connection,
                       InterfaceRequest<NetworkService> request) OVERRIDE;
 
   base::ScopedPtrHashMap<uintptr_t, ApplicationImpl> apps_;
   scoped_ptr<NetworkContext> context_;
 
   DISALLOW_COPY_AND_ASSIGN(NetworkServiceLoader);
 };
 
 }  // namespace shell
 }  // namespace mojo
 
 #endif  // MOJO_SHELL_NETWORK_SERVICE_LOADER_H_