Mac CoreAnimation compositor in the browser process

gpu/ipc/client/gpu_memory_buffer_impl.h

Index: gpu/ipc/client/gpu_memory_buffer_impl.h
diff --git a/gpu/ipc/client/gpu_memory_buffer_impl.h b/gpu/ipc/client/gpu_memory_buffer_impl.h
index 8439d0f401dccf649add9213287d76bdf4283236..4b445901543ba6c9eb85a6ece8059e170cda39c9 100644
--- a/gpu/ipc/client/gpu_memory_buffer_impl.h
+++ b/gpu/ipc/client/gpu_memory_buffer_impl.h
@@ -23,6 +23,8 @@ class GPU_EXPORT GpuMemoryBufferImpl : public gfx::GpuMemoryBuffer {
 
   ~GpuMemoryBufferImpl() override;
 
+  void* GetIOSurface() override;
+
   // Creates an instance from the given |handle|. |size| and |internalformat|
   // should match what was used to allocate the |handle|. |callback| is
   // called when instance is deleted, which is not necessarily on the same