gpu: Compositor management of GpuMemoryBuffer instances.

content/child/child_thread.h

Index: content/child/child_thread.h
diff --git a/content/child/child_thread.h b/content/child/child_thread.h
index d7d372d6da6ab6c69b516a834667c7eacd90dbfd..f48c688985045b4d813a2b4fc25a483d4fd0920e 100644
--- a/content/child/child_thread.h
+++ b/content/child/child_thread.h
@@ -36,6 +36,7 @@ class WebFrame;
 }  // namespace blink
 
 namespace content {
+class ChildGpuMemoryBufferManager;
 class ChildHistogramMessageFilter;
 class ChildResourceMessageFilter;
 class ChildSharedBitmapManager;
@@ -97,6 +98,10 @@ class CONTENT_EXPORT ChildThread : public IPC::Listener, public IPC::Sender {
     return shared_bitmap_manager_.get();
   }
 
+  ChildGpuMemoryBufferManager* gpu_memory_buffer_manager() const {
+    return gpu_memory_buffer_manager_.get();
+  }
+
   ResourceDispatcher* resource_dispatcher() const {
     return resource_dispatcher_.get();
   }
@@ -242,6 +247,8 @@ class CONTENT_EXPORT ChildThread : public IPC::Listener, public IPC::Sender {
 
   scoped_ptr<ChildSharedBitmapManager> shared_bitmap_manager_;
 
+  scoped_ptr<ChildGpuMemoryBufferManager> gpu_memory_buffer_manager_;
+
   // Observes the trace event system. When tracing is enabled, optionally
   // starts profiling the tcmalloc heap.
   scoped_ptr<base::debug::TraceMemoryController> trace_memory_controller_;