WIP: Propagate SurfaceID up window tree hierarchy

cc/surfaces/display.h

 // 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.
 
 #ifndef CC_SURFACES_DISPLAY_H_
 #define CC_SURFACES_DISPLAY_H_
 
 #include <memory>
 #include <vector>
 
 #include "base/macros.h"
 #include "cc/output/output_surface_client.h"
 #include "cc/resources/returned_resource.h"
 #include "cc/scheduler/begin_frame_source.h"
 #include "cc/surfaces/display_scheduler.h"
+#include "cc/surfaces/frame_sink_id.h"
 #include "cc/surfaces/surface_aggregator.h"
 #include "cc/surfaces/surface_id.h"
 #include "cc/surfaces/surface_manager.h"
 #include "cc/surfaces/surfaces_export.h"
 #include "gpu/command_buffer/common/texture_in_use_response.h"
 #include "ui/events/latency_info.h"
 #include "ui/gfx/color_space.h"
 
 namespace gpu {
 class GpuMemoryBufferManager;
@@ skipping 33 matching lines @@
           const RendererSettings& settings,
           std::unique_ptr<BeginFrameSource> begin_frame_source,
           std::unique_ptr<OutputSurface> output_surface,
           std::unique_ptr<DisplayScheduler> scheduler,
           std::unique_ptr<TextureMailboxDeleter> texture_mailbox_deleter);
 
   ~Display() override;
 
   void Initialize(DisplayClient* client,
                   SurfaceManager* surface_manager,
-                  uint32_t compositor_surface_namespace);
+                  const FrameSinkId& frame_sink_id);
 
   // device_scale_factor is used to communicate to the external window system
   // what scale this was rendered at.
   void SetSurfaceId(const SurfaceId& id, float device_scale_factor);
   void SetVisible(bool visible);
   void Resize(const gfx::Size& new_size);
   void SetColorSpace(const gfx::ColorSpace& color_space);
   void SetExternalClip(const gfx::Rect& clip);
   void SetExternalViewport(const gfx::Rect& viewport);
   void SetOutputIsSecure(bool secure);
@@ skipping 31 matching lines @@
  private:
   void InitializeRenderer();
   void UpdateRootSurfaceResourcesLocked();
 
   SharedBitmapManager* const bitmap_manager_;
   gpu::GpuMemoryBufferManager* const gpu_memory_buffer_manager_;
   const RendererSettings settings_;
 
   DisplayClient* client_ = nullptr;
   SurfaceManager* surface_manager_ = nullptr;
-  uint32_t compositor_surface_namespace_;
+  FrameSinkId frame_sink_id_;
   SurfaceId current_surface_id_;
   gfx::Size current_surface_size_;
   float device_scale_factor_ = 1.f;
   gfx::ColorSpace device_color_space_;
   bool visible_ = false;
   bool swapped_since_resize_ = false;
   gfx::Rect external_clip_;
   gfx::Rect external_viewport_;
   bool output_is_secure_ = false;
 
   // The begin_frame_source_ is often known by the output_surface_ and
   // the scheduler_.
   std::unique_ptr<BeginFrameSource> begin_frame_source_;
   std::unique_ptr<OutputSurface> output_surface_;
   std::unique_ptr<DisplayScheduler> scheduler_;
   std::unique_ptr<ResourceProvider> resource_provider_;
   std::unique_ptr<SurfaceAggregator> aggregator_;
   std::unique_ptr<TextureMailboxDeleter> texture_mailbox_deleter_;
   std::unique_ptr<DirectRenderer> renderer_;
   SoftwareRenderer* software_renderer_ = nullptr;
   std::vector<ui::LatencyInfo> stored_latency_info_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(Display);
 };
 
 }  // namespace cc
 
 #endif  // CC_SURFACES_DISPLAY_H_