Move GpuMemoryBufferManager and SharedBitmapManager to CompositorFrameSink

content/renderer/render_thread_impl.h

Index: content/renderer/render_thread_impl.h
diff --git a/content/renderer/render_thread_impl.h b/content/renderer/render_thread_impl.h
index 7ee58e57b4de85648e34240be5d4df1af4d6e1ba..6292b9129a46bf5e120b2e433039de2c3604263d 100644
--- a/content/renderer/render_thread_impl.h
+++ b/content/renderer/render_thread_impl.h
@@ -233,7 +233,6 @@ class CONTENT_EXPORT RenderThreadImpl
   GetCompositorMainThreadTaskRunner() override;
   scoped_refptr<base::SingleThreadTaskRunner>
   GetCompositorImplThreadTaskRunner() override;
-  gpu::GpuMemoryBufferManager* GetGpuMemoryBufferManager() override;
   blink::scheduler::RendererScheduler* GetRendererScheduler() override;
   cc::ImageSerializationProcessor* GetImageSerializationProcessor() override;
   cc::TaskGraphRunner* GetTaskGraphRunner() override;
@@ -249,6 +248,8 @@ class CONTENT_EXPORT RenderThreadImpl
   // time this routine returns.
   scoped_refptr<gpu::GpuChannelHost> EstablishGpuChannelSync();
 
+  gpu::GpuMemoryBufferManager* GetGpuMemoryBufferManager();
+
   std::unique_ptr<cc::CompositorFrameSink> CreateCompositorFrameSink(
       bool use_software,
       int routing_id,