Routes calls to WM through WS

mandoline/ui/desktop_ui/browser_window.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 "mandoline/ui/desktop_ui/browser_window.h"
 
 #include "base/command_line.h"
 #include "base/strings/string16.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/time/time.h"
@@ skipping 68 matching lines @@
       progress_bar_(nullptr),
       find_bar_view_(nullptr),
       root_(nullptr),
       content_(nullptr),
       omnibox_view_(nullptr),
       find_active_(0),
       find_count_(0),
       web_view_(this) {
   mus::mojom::WindowTreeHostClientPtr host_client;
   host_client_binding_.Bind(GetProxy(&host_client));
-  mus::CreateWindowTreeHost(host_factory, host_client.Pass(), this, &host_);
+  mus::CreateWindowTreeHost(host_factory, host_client.Pass(), this, &host_,
+                            nullptr);
 }
 
 void BrowserWindow::LoadURL(const GURL& url) {
   // Haven't been embedded yet, can't embed.
   // TODO(beng): remove this.
   if (!root_) {
     default_url_ = url;
     return;
   }
 
@@ skipping 320 matching lines @@
   omnibox_view_->Embed(view_tree_client.Pass());
 
   // TODO(beng): This should be handled sufficiently by
   //             OmniboxImpl::ShowWindow() but unfortunately view manager policy
   //             currently prevents the embedded app from changing window z for
   //             its own window.
   omnibox_view_->MoveToFront();
 }
 
 }  // namespace mandoline