Mac CoreAnimation compositor in the browser process

ui/gfx/gpu_memory_buffer.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 UI_GFX_GPU_MEMORY_BUFFER_H_
 #define UI_GFX_GPU_MEMORY_BUFFER_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 47 matching lines @@
 GetGpuMemoryBufferGUIDForTracing(uint64_t tracing_process_id,
                                  GpuMemoryBufferId buffer_id);
 
 // This interface typically correspond to a type of shared memory that is also
 // shared with the GPU. A GPU memory buffer can be written to directly by
 // regular CPU code, but can also be read by the GPU.
 class GFX_EXPORT GpuMemoryBuffer {
  public:
   virtual ~GpuMemoryBuffer() {}
 
+  virtual void* GetIOSurface() = 0;
+
   // Maps each plane of the buffer into the client's address space so it can be
   // written to by the CPU. This call may block, for instance if the GPU needs
   // to finish accessing the buffer or if CPU caches need to be synchronized.
   // Returns false on failure.
   virtual bool Map() = 0;
 
   // Returns a pointer to the memory address of a plane. Buffer must have been
   // successfully mapped using a call to Map() before calling this function.
   virtual void* memory(size_t plane) = 0;
 
@@ skipping 24 matching lines @@
   // Returns a platform specific handle for this buffer.
   virtual GpuMemoryBufferHandle GetHandle() const = 0;
 
   // Type-checking downcast routine.
   virtual ClientBuffer AsClientBuffer() = 0;
 };
 
 }  // namespace gfx
 
 #endif  // UI_GFX_GPU_MEMORY_BUFFER_H_