Add skia::RefPtr class to wrap ref counted classes from Skia.

skia/ext/vector_platform_device_skia.h

 // Copyright (c) 2011 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.
 
 #ifndef SKIA_EXT_VECTOR_PLATFORM_DEVICE_SKIA_H_
 #define SKIA_EXT_VECTOR_PLATFORM_DEVICE_SKIA_H_
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/logging.h"
 #include "skia/ext/platform_device.h"
-#include "third_party/skia/include/core/SkRefCnt.h"
+#include "skia/ext/refptr.h"
 #include "third_party/skia/include/core/SkTScopedPtr.h"
 #include "third_party/skia/include/pdf/SkPDFDevice.h"
 
 class SkMatrix;
 
 namespace skia {
 
 class BitmapPlatformDevice;
 
 class VectorPlatformDeviceSkia : public SkPDFDevice, public PlatformDevice {
@@ skipping 20 matching lines @@
                                    const CGRect* src_rect) OVERRIDE;
   virtual CGContextRef GetBitmapContext() OVERRIDE;
 #elif defined(OS_LINUX) || defined(OS_ANDROID) || defined(OS_OPENBSD)
   virtual void DrawToNativeContext(PlatformSurface surface,
                                    int x,
                                    int y,
                                    const PlatformRect* src_rect) OVERRIDE;
 #endif
 
  private:
-  SkRefPtr<BitmapPlatformDevice> raster_surface_;
+  skia::RefPtr<BitmapPlatformDevice> raster_surface_;
 
   DISALLOW_COPY_AND_ASSIGN(VectorPlatformDeviceSkia);
 };
 
 }  // namespace skia
 
 #endif  // SKIA_EXT_VECTOR_PLATFORM_DEVICE_SKIA_H_