[Ozone] Fix build

ui/ozone/platform/dri/dri_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/dri_surface.h"
 
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
 #include "third_party/skia/include/core/SkCanvas.h"
 #include "third_party/skia/include/core/SkSurface.h"
@@ skipping 25 matching lines @@
 DriSurface::DriSurface(DriWindowDelegate* window_delegate, DriWrapper* dri)
     : window_delegate_(window_delegate),
       dri_(dri),
       buffers_(),
       front_buffer_(0) {
 }
 
 DriSurface::~DriSurface() {
 }
 
-skia::RefPtr<SkCanvas> DriSurface::GetCanvas() {
-  return skia::SharePtr(surface_->getCanvas());
+skia::RefPtr<SkSurface> DriSurface::GetSurface() {
+  return surface_;
 }
 
 void DriSurface::ResizeCanvas(const gfx::Size& viewport_size) {
   SkImageInfo info = SkImageInfo::MakeN32(
       viewport_size.width(), viewport_size.height(), kOpaque_SkAlphaType);
   surface_ = skia::AdoptRef(SkSurface::NewRaster(info));
 
   HardwareDisplayController* controller = window_delegate_->GetController();
   if (!controller)
     return;
@@ skipping 34 matching lines @@
   SkRect real_damage = RectToSkRect(UnionRects(damage, last_damage_));
 
   // Copy damage region.
   skia::RefPtr<SkImage> image = skia::AdoptRef(surface_->newImageSnapshot());
   canvas->drawImageRect(image.get(), &real_damage, real_damage, NULL);
 
   last_damage_ = damage;
 }
 
 }  // namespace ui