[exp] ash: Ash in Mus.

components/mus/ws/server_window_surface_manager.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/mus/ws/server_window_surface_manager.h"
 
 #include "components/mus/ws/server_window.h"
 #include "components/mus/ws/server_window_delegate.h"
 #include "components/mus/ws/server_window_surface.h"
 
 namespace mus {
 namespace ws {
 
 ServerWindowSurfaceManager::ServerWindowSurfaceManager(ServerWindow* window)
     : window_(window),
       surface_id_allocator_(WindowIdToTransportId(window->id())),
       waiting_for_initial_frames_(
           window_->properties().count(mus::mojom::kWaitForUnderlay_Property) >
           0) {}
 
 ServerWindowSurfaceManager::~ServerWindowSurfaceManager() {}
 
 bool ServerWindowSurfaceManager::ShouldDraw() {
   if (!waiting_for_initial_frames_)
     return true;
 
+  // XXX(sad): We don't have an underlay right now.
   waiting_for_initial_frames_ =
-      !IsSurfaceReadyAndNonEmpty(mojom::SurfaceType::DEFAULT) ||
-      !IsSurfaceReadyAndNonEmpty(mojom::SurfaceType::UNDERLAY);
+      !IsSurfaceReadyAndNonEmpty(mojom::SurfaceType::DEFAULT) /* &&
+      !IsSurfaceReadyAndNonEmpty(mojom::SurfaceType::UNDERLAY) */;
   return !waiting_for_initial_frames_;
 }
 
 void ServerWindowSurfaceManager::CreateSurface(
     mojom::SurfaceType surface_type,
     mojo::InterfaceRequest<mojom::Surface> request,
     mojom::SurfaceClientPtr client) {
   type_to_surface_map_[surface_type] = make_scoped_ptr(new ServerWindowSurface(
       this, surface_type, std::move(request), std::move(client)));
 }
@@ skipping 28 matching lines @@
   return last_submitted_frame_size.width() >= window_->bounds().width() &&
          last_submitted_frame_size.height() >= window_->bounds().height();
 }
 
 cc::SurfaceId ServerWindowSurfaceManager::GenerateId() {
   return surface_id_allocator_.GenerateId();
 }
 
 }  // namespace ws
 }  // namespace mus