[Media Router] Add a presentation id to MediaRoute mapping in the MR

chrome/browser/media/router/presentation_service_delegate_impl_unittest.cc

 // Copyright 2015 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 "chrome/browser/media/router/presentation_service_delegate_impl.h"
 
 #include "base/memory/ptr_util.h"
 #include "base/test/mock_callback.h"
 #include "chrome/browser/media/router/media_source.h"
 #include "chrome/browser/media/router/media_source_helper.h"
@@ skipping 410 matching lines @@
       kPresentationId,
       base::Bind(&MockCreatePresentationConnnectionCallbacks::
                      OnCreateConnectionSuccess,
                  base::Unretained(&mock_create_connection_callbacks)),
       base::Bind(
           &MockCreatePresentationConnnectionCallbacks::OnCreateConnectionError,
           base::Unretained(&mock_create_connection_callbacks)));
 
   EXPECT_CALL(mock_create_connection_callbacks, OnCreateConnectionSuccess(_))
       .Times(1);
+
   std::unique_ptr<RouteRequestResult> result = RouteRequestResult::FromSuccess(
       MediaRoute("routeId", source1_, "mediaSinkId", "description", true, "",
                  true),
       kPresentationId);
+
   for (const auto& route_response_callback : route_response_callbacks)
     route_response_callback.Run(*result);
 
   base::MockCallback<content::PresentationConnectionStateChangedCallback>
       mock_callback;
   auto callback = mock_callback.Get();
   content::PresentationSessionInfo connection(presentation_url1_,
                                               kPresentationId);
   EXPECT_CALL(router_, OnAddPresentationConnectionStateChangedCallbackInvoked(
                            Equals(callback)));
@@ skipping 190 matching lines @@
       base::Bind(&MockCreatePresentationConnnectionCallbacks::
                      OnCreateConnectionSuccess,
                  base::Unretained(&mock_create_connection_callbacks)),
       base::Bind(
           &MockCreatePresentationConnnectionCallbacks::OnCreateConnectionError,
           base::Unretained(&mock_create_connection_callbacks)));
 }
 #endif  // !defined(OS_ANDROID)
 
 }  // namespace media_router