Routes calls to WM through WS

components/web_view/frame_apptest.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 "components/web_view/frame.h"
 
 #include "base/bind.h"
 #include "base/location.h"
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 353 matching lines @@
   void OnEmbed(Window* root) override {
     most_recent_connection_ = root->connection();
     QuitRunLoop();
   }
   void OnConnectionLost(WindowTreeConnection* connection) override {}
 
   // Overridden from testing::Test:
   void SetUp() override {
     ApplicationTestBase::SetUp();
 
-    mus::CreateSingleWindowTreeHost(application_impl(), this, &host_);
+    mus::CreateSingleWindowTreeHost(application_impl(), this, &host_, nullptr);
 
     ASSERT_TRUE(DoRunLoopWithTimeout());
     std::swap(window_manager_, most_recent_connection_);
 
     // Creates a FrameTree, which creates a single frame. Wait for the
     // FrameClient to be connected to.
     frame_tree_delegate_.reset(new TestFrameTreeDelegate(application_impl()));
     scoped_ptr<FrameConnection> frame_connection =
         CreateFrameConnection(application_impl());
     mojom::FrameClient* frame_client = frame_connection->frame_client();
@@ skipping 181 matching lines @@
   scoped_ptr<WindowAndFrame> navigated_child_view_and_frame =
       NavigateFrameWithStartTime(child_view_and_frame.get(),
                                  navigation_start_time)
           .Pass();
   EXPECT_EQ(navigation_start_time,
             navigated_child_view_and_frame->test_frame_client()
                 ->last_navigation_start_time());
 }
 
 }  // namespace web_view