Fixes bug in ServerWindowCompositorFrameSinkManager

services/ui/ws/server_window_compositor_frame_sink_manager.h

 // 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.
 
 #ifndef SERVICES_UI_WS_SERVER_WINDOW_COMPOSITOR_FRAME_SINK_MANAGER_H_
 #define SERVICES_UI_WS_SERVER_WINDOW_COMPOSITOR_FRAME_SINK_MANAGER_H_
 
 #include <map>
 
 #include "base/macros.h"
@@ skipping 15 matching lines @@
   CompositorFrameSinkData(CompositorFrameSinkData&& other);
   ~CompositorFrameSinkData();
 
   CompositorFrameSinkData& operator=(CompositorFrameSinkData&& other);
 
   cc::SurfaceId latest_submitted_surface_id;
   gfx::Size latest_submitted_frame_size;
   cc::mojom::MojoCompositorFrameSinkPrivatePtr compositor_frame_sink;
   cc::mojom::MojoCompositorFrameSinkPrivateRequest
       pending_compositor_frame_sink_request;
+  cc::FrameSinkId frame_sink_id;
 };
 
 // ServerWindowCompositorFrameSinkManager tracks the surfaces associated with a
 // ServerWindow.
 // TODO(fsamuel): Delete this once window decorations are managed in the window
 // manager.
 class ServerWindowCompositorFrameSinkManager {
  public:
   explicit ServerWindowCompositorFrameSinkManager(ServerWindow* window);
   ~ServerWindowCompositorFrameSinkManager();
@@ skipping 30 matching lines @@
 
   bool HasCompositorFrameSinkOfType(mojom::CompositorFrameSinkType type) const;
   bool HasAnyCompositorFrameSink() const;
 
   gfx::Size GetLatestFrameSize(mojom::CompositorFrameSinkType type) const;
   cc::SurfaceId GetLatestSurfaceId(mojom::CompositorFrameSinkType type) const;
   void SetLatestSurfaceInfo(mojom::CompositorFrameSinkType type,
                             const cc::SurfaceId& surface_id,
                             const gfx::Size& frame_size);
 
+  void OnRootChanged(ServerWindow* old_root, ServerWindow* new_root);
+
  private:
   friend class ServerWindowCompositorFrameSinkManagerTestApi;
   friend class ServerWindowCompositorFrameSink;
 
   // Returns true if a CompositorFrameSink of |type| has been set and has
   // received a frame that is greater than the size of the window.
   bool IsCompositorFrameSinkReadyAndNonEmpty(
       mojom::CompositorFrameSinkType type) const;
 
   void CreateCompositorFrameSinkInternal(
@@ skipping 16 matching lines @@
   // the underlay is not necessarily as big as the window.
   bool waiting_for_initial_frames_;
 
   DISALLOW_COPY_AND_ASSIGN(ServerWindowCompositorFrameSinkManager);
 };
 
 }  // namespace ws
 }  // namespace ui
 
 #endif  // SERVICES_UI_WS_SERVER_WINDOW_COMPOSITOR_FRAME_SINK_MANAGER_H_