First cut at "content handling" support in Mojo.

mojo/services/public/cpp/view_manager/tests/view_manager_unittest.cc

 // 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.
 
 #include "mojo/services/public/cpp/view_manager/view_manager.h"
 
 #include "base/auto_reset.h"
 #include "base/bind.h"
 #include "base/logging.h"
 #include "mojo/public/cpp/application/application_connection.h"
@@ skipping 35 matching lines @@
                              public ViewManagerDelegate {
  public:
   typedef base::Callback<void(ViewManager*, Node*)> LoadedCallback;
 
   explicit ConnectServiceLoader(const LoadedCallback& callback)
       : callback_(callback), view_manager_client_factory_(this) {}
   virtual ~ConnectServiceLoader() {}
 
  private:
   // Overridden from ServiceLoader:
-  virtual void LoadService(ServiceManager* manager,
-                           const GURL& url,
-                           ScopedMessagePipeHandle shell_handle) OVERRIDE {
+  virtual void Load(ServiceManager* manager,
+                    const GURL& url,
+                    scoped_refptr<LoadCallbacks> callbacks) OVERRIDE {
+    ScopedMessagePipeHandle shell_handle = callbacks->RegisterApplication();
+    if (!shell_handle.is_valid())
+      return;
     scoped_ptr<ApplicationImpl> app(new ApplicationImpl(this,
                                                         shell_handle.Pass()));
     apps_.push_back(app.release());
   }
 
   virtual void OnServiceError(ServiceManager* manager,
                               const GURL& url) OVERRIDE {
   }
 
   virtual bool ConfigureIncomingConnection(ApplicationConnection* connection)
@@ skipping 599 matching lines @@
 
 // TODO(beng): tests for view event dispatcher.
 // - verify that we see events for all views.
 
 // TODO(beng): tests for focus:
 // - focus between two nodes known to a connection
 // - focus between nodes unknown to one of the connections.
 // - focus between nodes unknown to either connection.
 
 }  // namespace mojo