mus-ws: Plumb FrameSinkId to Children

ui/views/mus/mus_client.cc

 // Copyright 2016 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 "ui/views/mus/mus_client.h"
 
 #include "base/bind.h"
 #include "base/memory/ptr_util.h"
 #include "base/threading/thread.h"
 #include "services/service_manager/public/cpp/connection.h"
@@ skipping 245 matching lines @@
   return server_test_ptr_.get();
 }
 
 std::unique_ptr<DesktopWindowTreeHost> MusClient::CreateDesktopWindowTreeHost(
     const Widget::InitParams& init_params,
     internal::NativeWidgetDelegate* delegate,
     DesktopNativeWidgetAura* desktop_native_widget_aura) {
   std::map<std::string, std::vector<uint8_t>> mus_properties =
       ConfigurePropertiesFromParams(init_params);
   return base::MakeUnique<DesktopWindowTreeHostMus>(
-      delegate, desktop_native_widget_aura, &mus_properties);
+      delegate, desktop_native_widget_aura, cc::FrameSinkId(), &mus_properties);
 }
 
 void MusClient::OnEmbed(
     std::unique_ptr<aura::WindowTreeHostMus> window_tree_host) {
   NOTREACHED();
 }
 
 void MusClient::OnLostConnection(aura::WindowTreeClient* client) {}
 
 void MusClient::OnEmbedRootDestroyed(
@@ skipping 24 matching lines @@
     // TODO: this likely gets z-order wrong. http://crbug.com/663606.
     gfx::Point relative_point(point);
     window_tree_host->ConvertScreenInPixelsToDIP(&relative_point);
     if (gfx::Rect(root->bounds().size()).Contains(relative_point))
       return root->GetTopWindowContainingPoint(relative_point);
   }
   return nullptr;
 }
 
 }  // namespace views