ozone: Implement support for CreateGpuMemoryBufferFromHandle for OzoneNativePixmap backed GMBs.

ui/ozone/public/surface_factory_ozone.h

 // Copyright (c) 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_OZONE_PUBLIC_SURFACE_FACTORY_OZONE_H_
 #define UI_OZONE_PUBLIC_SURFACE_FACTORY_OZONE_H_
 
 #include "base/callback.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/native_library.h"
 #include "ui/gfx/buffer_types.h"
 #include "ui/gfx/geometry/rect.h"
 #include "ui/gfx/native_widget_types.h"
 #include "ui/gfx/overlay_transform.h"
 #include "ui/ozone/ozone_base_export.h"
+#include "ui/ozone/public/native_pixmap.h"
 
 namespace ui {
 
 class NativePixmap;
 class SurfaceOzoneCanvas;
 class SurfaceOzoneEGL;
 
 // The Ozone interface allows external implementations to hook into Chromium to
 // provide a system specific implementation. The Ozone interface supports two
 // drawing modes: 1) accelerated drawing through EGL and 2) software drawing
@@ skipping 73 matching lines @@
   // Create a single native buffer to be used for overlay planes or zero copy
   // for |widget| representing a particular display controller or default
   // display controller for kNullAcceleratedWidget.
   // It can be called on any thread.
   virtual scoped_refptr<NativePixmap> CreateNativePixmap(
       gfx::AcceleratedWidget widget,
       gfx::Size size,
       gfx::BufferFormat format,
       gfx::BufferUsage usage);
 
+  // Create a single native buffer from an existing handle.
+  // It can be called on any thread.
+  virtual scoped_refptr<NativePixmap> CreateNativePixmapFromHandle(
+      const gfx::NativePixmapHandle& handle);
+
  protected:
   SurfaceFactoryOzone();
   virtual ~SurfaceFactoryOzone();
 
  private:
   DISALLOW_COPY_AND_ASSIGN(SurfaceFactoryOzone);
 };
 
 }  // namespace ui
 
 #endif  // UI_OZONE_PUBLIC_SURFACE_FACTORY_OZONE_H_