ozone: Implement zero/one-copy texture for Ozone GBM.

content/common/gpu/client/gpu_memory_buffer_impl_ozone_native_buffer.cc

 // 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.
 
 #include "content/common/gpu/client/gpu_memory_buffer_impl_ozone_native_buffer.h"
 
 #include "ui/ozone/public/surface_factory_ozone.h"
 
+#if defined(USE_OZONE_GBM)
+#include "content/common/gpu/client/gpu_memory_buffer_impl_ozone_gbm.h"
+#endif
+
 namespace content {
 
 GpuMemoryBufferImplOzoneNativeBuffer::GpuMemoryBufferImplOzoneNativeBuffer(
     gfx::GpuMemoryBufferId id,
     const gfx::Size& size,
     Format format,
     const DestructionCallback& callback)
     : GpuMemoryBufferImpl(id, size, format, callback) {
 }
 
 GpuMemoryBufferImplOzoneNativeBuffer::~GpuMemoryBufferImplOzoneNativeBuffer() {
 }
 
 // static
 scoped_ptr<GpuMemoryBufferImpl>
 GpuMemoryBufferImplOzoneNativeBuffer::CreateFromHandle(
     const gfx::GpuMemoryBufferHandle& handle,
     const gfx::Size& size,
     Format format,
     const DestructionCallback& callback) {
+#if defined(USE_OZONE_GBM)
+  // If |fd| is -1, it's SCANOUT buffer.
+  if (handle.device_handle.fd != -1)
+    return GpuMemoryBufferImplOzoneGbm::CreateFromHandle(handle, size, format,
+                                                         callback);
+#endif
   return make_scoped_ptr<GpuMemoryBufferImpl>(
       new GpuMemoryBufferImplOzoneNativeBuffer(
           handle.id, size, format, callback));
 }
 
 bool GpuMemoryBufferImplOzoneNativeBuffer::Map(void** data) {
   NOTREACHED();
   return false;
 }
 
 void GpuMemoryBufferImplOzoneNativeBuffer::Unmap() {
   NOTREACHED();
 }
 
 void GpuMemoryBufferImplOzoneNativeBuffer::GetStride(int* stride) const {
   NOTREACHED();
 }
 
 gfx::GpuMemoryBufferHandle GpuMemoryBufferImplOzoneNativeBuffer::GetHandle()
     const {
   gfx::GpuMemoryBufferHandle handle;
   handle.type = gfx::OZONE_NATIVE_BUFFER;
   handle.id = id_;
   return handle;
 }
 
 }  // namespace content