Add DIRECT_COMPOSITION GpuMemoryBuffer type.

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 15 matching lines @@
 
 namespace gfx {
 
 class ColorSpace;
 
 enum GpuMemoryBufferType {
   EMPTY_BUFFER,
   SHARED_MEMORY_BUFFER,
   IO_SURFACE_BUFFER,
   NATIVE_PIXMAP,
-  GPU_MEMORY_BUFFER_TYPE_LAST = NATIVE_PIXMAP
+  DIRECT_COMPOSITION,
+  GPU_MEMORY_BUFFER_TYPE_LAST = DIRECT_COMPOSITION
 };
 
 using GpuMemoryBufferId = GenericSharedMemoryId;
 
 struct GFX_EXPORT GpuMemoryBufferHandle {
   GpuMemoryBufferHandle();
   GpuMemoryBufferHandle(const GpuMemoryBufferHandle& other);
   ~GpuMemoryBufferHandle();
   bool is_null() const { return type == EMPTY_BUFFER; }
   GpuMemoryBufferType type;
@@ skipping 59 matching lines @@
 
 // Returns an instance of |handle| which can be sent over IPC. This duplicates
 // the file-handles as appropriate, so that the IPC code take ownership of them,
 // without invalidating |handle| itself.
 GFX_EXPORT GpuMemoryBufferHandle
 CloneHandleForIPC(const GpuMemoryBufferHandle& handle);
 
 }  // namespace gfx
 
 #endif  // UI_GFX_GPU_MEMORY_BUFFER_H_