sync compositor: Set display viewport for software draw

content/renderer/android/synchronous_compositor_output_surface.h

 // Copyright 2013 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_RENDERER_ANDROID_SYNCHRONOUS_COMPOSITOR_OUTPUT_SURFACE_H_
 #define CONTENT_RENDERER_ANDROID_SYNCHRONOUS_COMPOSITOR_OUTPUT_SURFACE_H_
 
 #include <stddef.h>
 
 #include <memory>
@@ skipping 86 matching lines @@
                     const gfx::Rect& clip,
                     const gfx::Rect& viewport_rect_for_tile_priority,
                     const gfx::Transform& transform_for_tile_priority);
   void DemandDrawSw(SkCanvas* canvas);
 
   // SurfaceFactoryClient implementation.
   void ReturnResources(const cc::ReturnedResourceArray& resources) override;
   void SetBeginFrameSource(cc::BeginFrameSource* begin_frame_source) override;
 
  private:
+  class SoftwareOutputSurface;
+
   void InvokeComposite(const gfx::Transform& transform,
                        const gfx::Rect& viewport,
                        const gfx::Rect& clip);
   bool Send(IPC::Message* message);
   void DidActivatePendingTree();
   void DeliverMessages();
   bool CalledOnValidThread() const;
 
   void CancelFallbackTick();
   void FallbackTickFired();
@@ skipping 33 matching lines @@
   // TODO(danakj): These don't to be stored in unique_ptrs when OutputSurface
   // is owned/destroyed on the compositor thread.
   std::unique_ptr<cc::SurfaceManager> surface_manager_;
   std::unique_ptr<cc::SurfaceIdAllocator> surface_id_allocator_;
   cc::SurfaceId delegated_surface_id_;
   // Uses surface_manager_.
   std::unique_ptr<cc::SurfaceFactory> surface_factory_;
   StubDisplayClient display_client_;
   // Uses surface_manager_.
   std::unique_ptr<cc::Display> display_;
+  SoftwareOutputSurface* software_output_surface_;  // Owned by |display_|.

[danakj, 2016/07/27 21:28:36]

= nullptr here instead of in constructor?

[boliu, 2016/07/27 21:43:04]

Done.

 
   base::ThreadChecker thread_checker_;
 
   DISALLOW_COPY_AND_ASSIGN(SynchronousCompositorOutputSurface);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_ANDROID_SYNCHRONOUS_COMPOSITOR_OUTPUT_SURFACE_H_