NotForReview: Implement zero/one-copy texture for ozone freon using Intel DRM

ui/ozone/platform/drm/gpu/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/drm/gpu/gbm_surface.h"
 
 #include <gbm.h>
 
 #include "base/bind.h"
 #include "base/logging.h"
@@ skipping 26 matching lines @@
   // release this buffer, keep a self-reference in order to keep this alive.
   // When GBM calls Destroy(..) the self-reference will dissapear and this will
   // be destroyed.
   scoped_refptr<GbmSurfaceBuffer> self_;
 
   DISALLOW_COPY_AND_ASSIGN(GbmSurfaceBuffer);
 };
 
 GbmSurfaceBuffer::GbmSurfaceBuffer(const scoped_refptr<DrmDevice>& drm,
                                    gbm_bo* bo)
-    : GbmBufferBase(drm, bo, true) {
+    : GbmBufferBase(drm, bo) {
   if (GetFramebufferId()) {
     self_ = this;
     gbm_bo_set_user_data(bo, this, GbmSurfaceBuffer::Destroy);
   }
 }
 
 GbmSurfaceBuffer::~GbmSurfaceBuffer() {
 }
 
 // static
@@ skipping 109 matching lines @@
                                        gbm_bo* pending_buffer) {
   // If there was a frontbuffer, it is no longer active. Release it back to GBM.
   if (current_buffer_)
     gbm_surface_release_buffer(native_surface_, current_buffer_);
 
   current_buffer_ = pending_buffer;
   callback.Run();
 }
 
 }  // namespace ui