Pass responsibility for IOSurface-texture reuse to the gpu process.

cc/output/gl_renderer.h

 // Copyright 2010 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_OUTPUT_GL_RENDERER_H_
 #define CC_OUTPUT_GL_RENDERER_H_
 
 #include <deque>
 #include <vector>
 
@@ skipping 48 matching lines @@
   ~GLRenderer() override;
 
   const RendererCapabilitiesImpl& Capabilities() const override;
 
   // Waits for rendering to finish.
   void Finish() override;
 
   void SwapBuffers(const CompositorFrameMetadata& metadata) override;
   void SwapBuffersComplete() override;
 
+  void DidReceiveTextureInUseResponses(
+      const gpu::TextureInUseResponses& responses) override;
+
   virtual bool IsContextLost();
 
  protected:
   GLRenderer(RendererClient* client,
              const RendererSettings* settings,
              OutputSurface* output_surface,
              ResourceProvider* resource_provider,
              TextureMailboxDeleter* texture_mailbox_deleter,
              int highp_threshold_min);
 
@@ skipping 185 matching lines @@
   using OverlayResourceLock =
       std::unique_ptr<ResourceProvider::ScopedReadLockGpuMemoryBuffer>;
   using OverlayResourceLockList = std::vector<OverlayResourceLock>;
 
   // Resources that have been sent to the GPU process, but not yet swapped.
   OverlayResourceLockList pending_overlay_resources_;
 
   // Resources that should be shortly swapped by the GPU process.
   std::deque<OverlayResourceLockList> swapping_overlay_resources_;
 
-  // Resources that the GPU process has finished swapping.
-  std::map<ResourceId, OverlayResourceLock>
-      swapped_and_acked_overlay_resources_;
+  // Resources that the GPU process has finished swapping. The key is the
+  // texture id of the resource.
+  std::map<unsigned, OverlayResourceLock> swapped_and_acked_overlay_resources_;
 
   RendererCapabilitiesImpl capabilities_;
 
   unsigned offscreen_framebuffer_id_;
 
   std::unique_ptr<StaticGeometryBinding> shared_geometry_;
   std::unique_ptr<DynamicGeometryBinding> clipped_geometry_;
   gfx::QuadF shared_geometry_quad_;
 
   // This block of bindings defines all of the programs used by the compositor
@@ skipping 244 matching lines @@
 
   SkBitmap on_demand_tile_raster_bitmap_;
   ResourceId on_demand_tile_raster_resource_id_;
   BoundGeometry bound_geometry_;
   DISALLOW_COPY_AND_ASSIGN(GLRenderer);
 };
 
 }  // namespace cc
 
 #endif  // CC_OUTPUT_GL_RENDERER_H_