Convert mustash use surface references.

services/ui/ws/window_server.cc

 // Copyright 2014 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 "services/ui/ws/window_server.h"
 
 #include <set>
 #include <string>
 
 #include "base/logging.h"
@@ skipping 753 matching lines @@
   // If the window doesn't have a parent then we have nothing to propagate.
   if (!window)
     return;
 
   // Cache the last submitted surface ID in the window server.
   // DisplayCompositorFrameSink may submit a CompositorFrame without
   // creating a CompositorFrameSinkManager.
   window->GetOrCreateCompositorFrameSinkManager()->SetLatestSurfaceInfo(
       compositor_frame_sink_type, surface_id, frame_size);
 
+  // FrameGenerator will add an appropriate reference for the new surface.
+  DCHECK(display_manager_->GetDisplayContaining(window));
+  display_manager_->GetDisplayContaining(window)
+      ->platform_display()
+      ->GetFrameGenerator()
+      ->AddSurfaceReference(surface_id, window);
+
   // This is only used for testing to observe that a window has a
   // CompositorFrame.
   if (!window_paint_callback_.is_null())
     window_paint_callback_.Run(window);
 
   // We only care about propagating default surface IDs.
   // TODO(fsamuel, sadrul): we should get rid of CompositorFrameSinkTypes.
   if (compositor_frame_sink_type != mojom::CompositorFrameSinkType::DEFAULT ||
       !window->parent()) {
     return;
@@ skipping 12 matching lines @@
 void WindowServer::OnUserIdAdded(const UserId& id) {
   activity_monitor_map_[id] = base::MakeUnique<UserActivityMonitor>(nullptr);
 }
 
 void WindowServer::OnUserIdRemoved(const UserId& id) {
   activity_monitor_map_.erase(id);
 }
 
 }  // namespace ws
 }  // namespace ui