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

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/application_manager/application_manager.h"
@@ skipping 45 matching lines @@
  private:
   // Overridden from ApplicationDelegate:
   void Initialize(ApplicationImpl* app) override {
     view_manager_client_factory_.reset(
         new ViewManagerClientFactory(app->shell(), this));
   }
 
   // Overridden from ApplicationLoader:
   void Load(ApplicationManager* 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()));
+            ScopedMessagePipeHandle shell_handle,
+            LoadCallback callback) override {
+    ASSERT_TRUE(shell_handle.is_valid());
+    scoped_ptr<ApplicationImpl> app(
+        new ApplicationImpl(this, shell_handle.Pass()));
     apps_.push_back(app.release());
   }
 
   void OnApplicationError(ApplicationManager* manager,
                           const GURL& url) override {}
 
   bool ConfigureIncomingConnection(ApplicationConnection* connection) override {
     connection->AddService(view_manager_client_factory_.get());
     return true;
   }
@@ skipping 563 matching lines @@
 
 // TODO(beng): tests for focus:
 // - focus between two views known to a connection
 // - focus between views unknown to one of the connections.
 // - focus between views unknown to either connection.
 
 // TODO(sky): need test of root being destroyed with existing views. See
 // 434555 for specific case.
 
 }  // namespace mojo