Mac CoreAnimation compositor in the browser process

gpu/ipc/client/gpu_memory_buffer_impl_io_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 GPU_IPC_CLIENT_GPU_MEMORY_BUFFER_IMPL_IO_SURFACE_H_
 #define GPU_IPC_CLIENT_GPU_MEMORY_BUFFER_IMPL_IO_SURFACE_H_
 
 #include <IOSurface/IOSurface.h>
 #include <stddef.h>
 #include <stdint.h>
 
 #include <memory>
 
 #include "base/mac/scoped_cftyperef.h"
 #include "base/macros.h"
 #include "gpu/gpu_export.h"
 #include "gpu/ipc/client/gpu_memory_buffer_impl.h"
 
 namespace gpu {
 
 // Implementation of GPU memory buffer based on IO surfaces.
 class GPU_EXPORT GpuMemoryBufferImplIOSurface : public GpuMemoryBufferImpl {
  public:
   ~GpuMemoryBufferImplIOSurface() override;
 
+  void* GetIOSurface() override;
+
   static std::unique_ptr<GpuMemoryBufferImplIOSurface> CreateFromHandle(
       const gfx::GpuMemoryBufferHandle& handle,
       const gfx::Size& size,
       gfx::BufferFormat format,
       gfx::BufferUsage usage,
       const DestructionCallback& callback);
 
   static bool IsConfigurationSupported(gfx::BufferFormat format,
                                        gfx::BufferUsage usage);
 
@@ skipping 20 matching lines @@
 
   base::ScopedCFTypeRef<IOSurfaceRef> io_surface_;
   uint32_t lock_flags_;
 
   DISALLOW_COPY_AND_ASSIGN(GpuMemoryBufferImplIOSurface);
 };
 
 }  // namespace gpu
 
 #endif  // GPU_IPC_CLIENT_GPU_MEMORY_BUFFER_IMPL_IO_SURFACE_H_