OnDrawHardware() implementation with async messages

content/browser/android/synchronous_compositor_host.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 CONTENT_BROWSER_ANDROID_SYNCHRONOUS_COMPOSITOR_HOST_H_
 #define CONTENT_BROWSER_ANDROID_SYNCHRONOUS_COMPOSITOR_HOST_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 40 matching lines @@
       RenderWidgetHostViewAndroid* rwhva,
       WebContents* web_contents);
 
   ~SynchronousCompositorHost() override;
 
   // SynchronousCompositor overrides.
   SynchronousCompositor::Frame DemandDrawHw(
       const gfx::Size& viewport_size,
       const gfx::Rect& viewport_rect_for_tile_priority,
       const gfx::Transform& transform_for_tile_priority) override;
+  SynchronousCompositor::Frame DemandDrawHw_Async(

[boliu, 2016/08/11 19:23:39]

this should not have a return value

[ojars, 2016/08/23 02:15:42]

Done.

+      const gfx::Size& viewport_size,
+      const gfx::Rect& viewport_rect_for_tile_priority,
+      const gfx::Transform& transform_for_tile_priority) override;
   bool DemandDrawSw(SkCanvas* canvas) override;
   void ReturnResources(uint32_t output_surface_id,
                        const cc::ReturnedResourceArray& resources) override;
   void SetMemoryPolicy(size_t bytes_limit) override;
   void DidChangeRootLayerScrollOffset(
       const gfx::ScrollOffset& root_offset) override;
   void SynchronouslyZoomBy(float zoom_delta, const gfx::Point& anchor) override;
   void OnComputeScroll(base::TimeTicks animation_time) override;
 
   void DidOverscroll(const DidOverscrollParams& over_scroll_params);
   void DidSendBeginFrame(ui::WindowAndroid* window_android);
   bool OnMessageReceived(const IPC::Message& message);
+  void DemandDrawHwReceiveFrame(uint32_t output_surface_id,

[boliu, 2016/08/11 19:23:39]

doesn't need to be public

[ojars, 2016/08/23 02:15:42]

Done.

+                                const cc::CompositorFrame&);

[boliu, 2016/08/11 19:23:39]

variable name required, by style guide

[ojars, 2016/08/23 02:15:42]

Done.

 
   // Called by SynchronousCompositorObserver.
   int routing_id() const { return routing_id_; }
   void ProcessCommonParams(const SyncCompositorCommonRendererParams& params);
 
  private:
   class ScopedSendZeroMemory;
   struct SharedMemoryWithSize;
   friend class ScopedSetZeroMemory;
   friend class SynchronousCompositorBase;
@@ skipping 27 matching lines @@
   bool need_animate_scroll_;
   uint32_t need_invalidate_count_;
   uint32_t did_activate_pending_tree_count_;
 
   DISALLOW_COPY_AND_ASSIGN(SynchronousCompositorHost);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_ANDROID_SYNCHRONOUS_COMPOSITOR_HOST_H_