GpuMemoryBufferFactoryOzoneNativePixmap: expose supported GMB attribs

gpu/ipc/service/gpu_memory_buffer_factory_native_pixmap.h

 // Copyright 2014 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_SERVICE_GPU_MEMORY_BUFFER_FACTORY_NATIVE_PIXMAP_H_
 #define GPU_IPC_SERVICE_GPU_MEMORY_BUFFER_FACTORY_NATIVE_PIXMAP_H_
 
 #include <unordered_map>
 #include <utility>
 
@@ skipping 21 matching lines @@
   // Overridden from GpuMemoryBufferFactory:
   gfx::GpuMemoryBufferHandle CreateGpuMemoryBuffer(
       gfx::GpuMemoryBufferId id,
       const gfx::Size& size,
       gfx::BufferFormat format,
       gfx::BufferUsage usage,
       int client_id,
       SurfaceHandle surface_handle) override;
   void DestroyGpuMemoryBuffer(gfx::GpuMemoryBufferId id,
                               int client_id) override;
+  gfx::GpuMemoryBufferAttribVector GetGpuMemoryBufferAttribsForUsage(
+      gfx::BufferUsage usage) override;
   ImageFactory* AsImageFactory() override;
 
   // Overridden from ImageFactory:
   scoped_refptr<gl::GLImage> CreateImageForGpuMemoryBuffer(
       const gfx::GpuMemoryBufferHandle& handle,
       const gfx::Size& size,
       gfx::BufferFormat format,
       unsigned internalformat,
       int client_id,
       SurfaceHandle surface_handle) override;
@@ skipping 11 matching lines @@
                                              NativePixmapMapKeyHash>;
   NativePixmapMap native_pixmaps_;
   base::Lock native_pixmaps_lock_;
 
   DISALLOW_COPY_AND_ASSIGN(GpuMemoryBufferFactoryNativePixmap);
 };
 
 }  // namespace gpu
 
 #endif  // GPU_IPC_SERVICE_GPU_MEMORY_BUFFER_FACTORY_NATIVE_PIXMAP_H_