GBM Ozone implementation

ui/ozone/platform/dri/dri_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/dri/dri_surface_factory.h"
 
 #include <errno.h>
 
 #include "base/debug/trace_event.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 78 matching lines @@
   UpdateNativeSurface(damage);
   controller_->SchedulePageFlip();
   controller_->WaitForPageFlipEvent();
 }
 
 scoped_ptr<gfx::VSyncProvider> DriSurfaceAdapter::CreateVSyncProvider() {
   return scoped_ptr<gfx::VSyncProvider>(new DriVSyncProvider(controller_));
 }
 
 void DriSurfaceAdapter::UpdateNativeSurface(const gfx::Rect& damage) {
-  SkCanvas* canvas = controller_->surface()->GetDrawableForWidget();
+  SkCanvas* canvas = static_cast<DriSurface*>(controller_->surface())
+      ->GetDrawableForWidget();
 
   // The DriSurface is double buffered, so the current back buffer is
   // missing the previous update. Expand damage region.
   SkRect real_damage = RectToSkRect(UnionRects(damage, last_damage_));
 
   // Copy damage region.
   skia::RefPtr<SkImage> image = skia::AdoptRef(surface_->newImageSnapshot());
   image->draw(canvas, &real_damage, real_damage, NULL);
 
   last_damage_ = damage;
@@ skipping 133 matching lines @@
       controller->SetCursor(cursor_surface_.get());
     }
   } else {
     // No cursor set.
     if (controller)
       controller->UnsetCursor();
   }
 }
 
 }  // namespace ui