WIP GPU scheduler + delayed activation / tile draw

cc/raster/gpu_raster_buffer_provider.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_RASTER_GPU_RASTER_BUFFER_PROVIDER_H_
 #define CC_RASTER_GPU_RASTER_BUFFER_PROVIDER_H_
 
 #include <stdint.h>
 
+#include "base/cancelable_callback.h"
 #include "base/macros.h"
 #include "cc/raster/raster_buffer_provider.h"
 #include "cc/resources/resource_provider.h"
 #include "gpu/command_buffer/common/sync_token.h"
 
 namespace cc {
 class ContextProvider;
 
 class CC_EXPORT GpuRasterBufferProvider : public RasterBufferProvider {
  public:
   GpuRasterBufferProvider(ContextProvider* compositor_context_provider,
                           ContextProvider* worker_context_provider,
                           ResourceProvider* resource_provider,
                           bool use_distance_field_text,
                           int gpu_rasterization_msaa_sample_count,
                           bool async_worker_context_enabled);
   ~GpuRasterBufferProvider() override;
 
   // Overridden from RasterBufferProvider:
   std::unique_ptr<RasterBuffer> AcquireBufferForRaster(
       const Resource* resource,
       uint64_t resource_content_id,
       uint64_t previous_content_id) override;
   void ReleaseBufferForRaster(std::unique_ptr<RasterBuffer> buffer) override;
   void OrderingBarrier() override;
+  bool IsResourceReadyToDraw(const Resource* resource) override;
+  void SignalResourcesReadyToDraw(const std::vector<const Resource*>& resources,
+                                  const base::Closure& callback) override;
   ResourceFormat GetResourceFormat(bool must_support_alpha) const override;
   bool IsResourceSwizzleRequired(bool must_support_alpha) const override;
   bool CanPartialRasterIntoProvidedResource() const override;
   void Shutdown() override;
 
   void PlaybackOnWorkerThread(
       ResourceProvider::ScopedWriteLockGL* resource_lock,
       const gpu::SyncToken& sync_token,
       bool resource_has_previous_content,
       const RasterSource* raster_source,
       const gfx::Rect& raster_full_rect,
       const gfx::Rect& raster_dirty_rect,
       uint64_t new_content_id,
       const gfx::SizeF& scales,
       const RasterSource::PlaybackSettings& playback_settings);
 
  private:
   class RasterBufferImpl : public RasterBuffer {
    public:
     RasterBufferImpl(GpuRasterBufferProvider* client,
                      ResourceProvider* resource_provider,
                      ResourceId resource_id,
-                     bool async_worker_context_enabled,
                      bool resource_has_previous_content);
     ~RasterBufferImpl() override;
 
     // Overridden from RasterBuffer:
     void Playback(
         const RasterSource* raster_source,
         const gfx::Rect& raster_full_rect,
         const gfx::Rect& raster_dirty_rect,
         uint64_t new_content_id,
         const gfx::SizeF& scales,
@@ skipping 21 matching lines @@
   const bool async_worker_context_enabled_;
 
   std::set<RasterBufferImpl*> pending_raster_buffers_;
 
   DISALLOW_COPY_AND_ASSIGN(GpuRasterBufferProvider);
 };
 
 }  // namespace cc
 
 #endif  // CC_RASTER_GPU_RASTER_BUFFER_PROVIDER_H_