[Ozone-DRI] Adding ScanoutBuffer interface

ui/ozone/platform/dri/gbm_surface.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/dri/gbm_surface.h"
 
 #include <gbm.h>
 
 #include "base/logging.h"
 #include "third_party/skia/include/core/SkImageInfo.h"
@@ skipping 33 matching lines @@
   native_surface_ = gbm_surface_create(
       gbm_device_,
       size_.width(),
       size_.height(),
       GBM_BO_FORMAT_XRGB8888,
       GBM_BO_USE_SCANOUT | GBM_BO_USE_RENDERING);
 
   if (!native_surface_)
     return false;
 
-  dumb_buffer_.reset(new DriBuffer(dri_));
+  dumb_buffer_ = new DriBuffer(dri_);
   if (!dumb_buffer_->Initialize(SkImageInfo::MakeN32Premul(size_.width(),
                                                            size_.height())))
     return false;
 
   return true;
 }
 
 uint32_t GbmSurface::GetFramebufferId() const {
   if (!buffers_[front_buffer_ ^ 1])
-    return dumb_buffer_->framebuffer();
+    return dumb_buffer_->GetFramebufferId();
 
   BufferData* data = BufferData::GetData(buffers_[front_buffer_ ^ 1]);
   CHECK(data);
   return data->framebuffer();
 }
 
 uint32_t GbmSurface::GetHandle() const {
   if (!buffers_[front_buffer_ ^ 1])
-    return dumb_buffer_->handle();
+    return dumb_buffer_->GetHandle();
 
   BufferData* data = BufferData::GetData(buffers_[front_buffer_ ^ 1]);
   CHECK(data);
   return data->handle();
 }
 
 gfx::Size GbmSurface::Size() const {
   return size_;
 }
 
@@ skipping 25 matching lines @@
 
   // Update the index to the frontbuffer.
   front_buffer_ ^= 1;
   // We've just released it. Since GBM doesn't guarantee we'll get the same
   // buffer back, we set it to NULL so we don't keep track of objects that may
   // have been destroyed.
   buffers_[front_buffer_ ^ 1] = NULL;
 }
 
 }  // namespace ui