cc: Plumbing for BeginFrameSource based on Surfaces

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 <vector>
 
 #include "base/memory/scoped_ptr.h"
 #include "cc/output/output_surface_client.h"
 #include "cc/output/renderer.h"
 #include "cc/resources/returned_resource.h"
+#include "cc/scheduler/begin_frame_source.h"
 #include "cc/surfaces/display_scheduler.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 "ui/events/latency_info.h"
 
 namespace gpu {
 class GpuMemoryBufferManager;
 }
 
 namespace gfx {
 class Size;
 }
 
 namespace cc {
 
+class BeginFrameSource;
 class DirectRenderer;
 class DisplayClient;
 class OutputSurface;
 class RendererSettings;
 class ResourceProvider;
 class SharedBitmapManager;
 class Surface;
 class SurfaceAggregator;
 class SurfaceIdAllocator;
 class SurfaceFactory;
 class TextureMailboxDeleter;
 
 // A Display produces a surface that can be used to draw to a physical display
 // (OutputSurface). The client is responsible for creating and sizing the
 // surface IDs used to draw into the display and deciding when to draw.
 class CC_SURFACES_EXPORT Display : public DisplaySchedulerClient,
                                    public OutputSurfaceClient,
                                    public RendererClient,
+                                   public SurfaceAggregatorClient,
                                    public SurfaceDamageObserver {
  public:
   Display(DisplayClient* client,
           SurfaceManager* manager,
           SharedBitmapManager* bitmap_manager,
           gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager,
           const RendererSettings& settings);
   ~Display() override;
 
   bool Initialize(scoped_ptr<OutputSurface> output_surface,
                   DisplayScheduler* scheduler);
 
   // device_scale_factor is used to communicate to the external window system
   // what scale this was rendered at.
   void SetSurfaceId(SurfaceId id, float device_scale_factor);
   void Resize(const gfx::Size& new_size);
   void SetExternalClip(const gfx::Rect& clip);
 
   SurfaceId CurrentSurfaceId();
 
+  // SurfaceAggregatorClient implementation
+  void AddSurface(Surface* surface) override;
+  void RemoveSurface(Surface* surface) override;
+
   // DisplaySchedulerClient implementation.
   bool DrawAndSwap() override;
 
   // OutputSurfaceClient implementation.
   void CommitVSyncParameters(base::TimeTicks timebase,
                              base::TimeDelta interval) override;
   void SetNeedsRedrawRect(const gfx::Rect& damage_rect) override;
   void DidSwapBuffers() override;
   void DidSwapBuffersComplete() override;
   void ReclaimResources(const CompositorFrameAck* ack) override;
@@ skipping 36 matching lines @@
   scoped_ptr<DirectRenderer> renderer_;
   scoped_ptr<TextureMailboxDeleter> texture_mailbox_deleter_;
   std::vector<ui::LatencyInfo> stored_latency_info_;
 
   DISALLOW_COPY_AND_ASSIGN(Display);
 };
 
 }  // namespace cc
 
 #endif  // CC_SURFACES_DISPLAY_H_