ozone: Implement support for CreateGpuMemoryBufferFromHandle for OzoneNativePixmap backed GMBs.

ui/ozone/platform/drm/gpu/gbm_surface_factory.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 "ui/ozone/platform/drm/gpu/gbm_surface_factory.h"
 
 #include <gbm.h>
 
 #include "base/files/file_path.h"
 #include "third_party/khronos/EGL/egl.h"
@@ skipping 110 matching lines @@
 #endif
 
   scoped_refptr<GbmDevice> gbm = GetGbmDevice(widget);
   DCHECK(gbm);
 
   scoped_refptr<GbmBuffer> buffer =
       GbmBuffer::CreateBuffer(gbm, format, size, usage);
   if (!buffer.get())
     return nullptr;
 
-  scoped_refptr<GbmPixmap> pixmap(new GbmPixmap(buffer, this));
-  if (!pixmap->Initialize())
+  scoped_refptr<GbmPixmap> pixmap(new GbmPixmap(this));
+  if (!pixmap->InitializeFromBuffer(buffer))
     return nullptr;
 
   return pixmap;
 }
 
+scoped_refptr<ui::NativePixmap> GbmSurfaceFactory::CreateNativePixmapFromHandle(
+    const gfx::NativePixmapHandle& handle) {
+  scoped_refptr<GbmPixmap> pixmap(new GbmPixmap(this));
+  pixmap->Initialize(base::ScopedFD(handle.fd.fd), handle.stride);
+  return pixmap;
+}
+
 scoped_refptr<GbmDevice> GbmSurfaceFactory::GetGbmDevice(
     gfx::AcceleratedWidget widget) {
   return static_cast<GbmDevice*>(
       drm_device_manager_->GetDrmDevice(widget).get());
 }
 
 }  // namespace ui