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

mojo/services/window_manager/window_manager_api_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 "base/bind.h"
 #include "base/command_line.h"
 #include "base/memory/scoped_vector.h"
 #include "mojo/application_manager/application_manager.h"
 #include "mojo/public/cpp/application/application_delegate.h"
 #include "mojo/public/cpp/application/application_impl.h"
@@ skipping 60 matching lines @@
   typedef base::Callback<void(View*)> RootAddedCallback;
 
   explicit TestApplicationLoader(const RootAddedCallback& root_added_callback)
       : root_added_callback_(root_added_callback) {}
   ~TestApplicationLoader() override {}
 
  private:
   // Overridden from ApplicationLoader:
   void Load(ApplicationManager* application_manager,
             const GURL& url,
+            ScopedMessagePipeHandle shell_handle,
             scoped_refptr<LoadCallbacks> callbacks) override {
-    ScopedMessagePipeHandle shell_handle = callbacks->RegisterApplication();
-    if (!shell_handle.is_valid())
-      return;
+    ASSERT_TRUE(shell_handle.is_valid());
     scoped_ptr<ApplicationImpl> app(
         new ApplicationImpl(this, shell_handle.Pass()));
     apps_.push_back(app.release());
   }
   void OnApplicationError(ApplicationManager* application_manager,
                           const GURL& url) override {}
 
   // Overridden from ApplicationDelegate:
   void Initialize(ApplicationImpl* app) override {
     view_manager_client_factory_.reset(
@@ skipping 161 matching lines @@
 
   Id second_window = OpenWindow();
   window_manager_->ActivateWindow(second_window,
                                   base::Bind(&EmptyResultCallback));
   ids = WaitForActiveWindowChange();
   EXPECT_EQ(ids.first, first_window);
   EXPECT_EQ(ids.second, second_window);
 }
 
 }  // namespace mojo