Revert of Revert of Forward input and compositing tasks to the Blink scheduler

content/renderer/render_thread_impl.h

 // Copyright (c) 2012 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_RENDER_THREAD_IMPL_H_
 #define CONTENT_RENDERER_RENDER_THREAD_IMPL_H_
 
 #include <set>
 #include <string>
 #include <vector>
@@ skipping 25 matching lines @@
 
 namespace blink {
 class WebGamepads;
 class WebGraphicsContext3D;
 class WebMediaStreamCenter;
 class WebMediaStreamCenterClient;
 }
 
 namespace base {
 class MessageLoopProxy;
+class SingleThreadTaskRunner;
 class Thread;
 }
 
 namespace cc {
 class ContextProvider;
 }
 
 namespace IPC {
 class ForwardingMessageFilter;
 class MessageFilter;
@@ skipping 135 matching lines @@
   }
   void set_layout_test_mode(bool layout_test_mode) {
     layout_test_mode_ = layout_test_mode;
   }
 
   RendererWebKitPlatformSupportImpl* webkit_platform_support() const {
     DCHECK(webkit_platform_support_);
     return webkit_platform_support_.get();
   }
 
+  scoped_refptr<base::SingleThreadTaskRunner>
+  main_thread_compositor_task_runner() const {
+    return main_thread_compositor_task_runner_;
+  }
+
   IPC::ForwardingMessageFilter* compositor_output_surface_filter() const {
     return compositor_output_surface_filter_.get();
   }
 
   InputHandlerManager* input_handler_manager() const {
     return input_handler_manager_.get();
   }
 
   // Will be NULL if threaded compositing has not been enabled.
   scoped_refptr<base::MessageLoopProxy> compositor_message_loop_proxy() const {
@@ skipping 349 matching lines @@
   scoped_ptr<WebRTCIdentityService> webrtc_identity_service_;
 #endif
 
   // TODO(reveman): Allow AllocateGpuMemoryBuffer to be called from
   // multiple threads. Current allocation mechanism for IOSurface
   // backed GpuMemoryBuffers prevent this. crbug.com/325045
   base::ThreadChecker allocate_gpu_memory_buffer_thread_checker_;
 
   scoped_ptr<MemoryObserver> memory_observer_;
 
+  scoped_refptr<base::SingleThreadTaskRunner>
+      main_thread_compositor_task_runner_;
+  scoped_refptr<base::SingleThreadTaskRunner> main_thread_input_task_runner_;
+
   // Compositor settings
   bool is_gpu_rasterization_enabled_;
   bool is_gpu_rasterization_forced_;
   bool is_impl_side_painting_enabled_;
   bool is_low_res_tiling_enabled_;
   bool is_lcd_text_enabled_;
   bool is_distance_field_text_enabled_;
   bool is_zero_copy_enabled_;
   bool is_one_copy_enabled_;
 
   std::map<int, mojo::MessagePipeHandle> pending_render_frame_connects_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderThreadImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_RENDER_THREAD_IMPL_H_