[SkSVGDevice] drawBitmap* support

src/svg/SkSVGDevice.h

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkSVGDevice_DEFINED
 #define SkSVGDevice_DEFINED
 
@@ skipping 43 matching lines @@
                               const SkPaint& paint) SK_OVERRIDE;
 
     virtual void drawDevice(const SkDraw&, SkBaseDevice*, int x, int y,
                             const SkPaint&) SK_OVERRIDE;
     virtual const SkBitmap& onAccessBitmap() SK_OVERRIDE;
 
 private:
     SkSVGDevice(const SkISize& size, SkXMLWriter* writer);
     virtual ~SkSVGDevice();
 
+    void drawBitmapCommon(const SkDraw& draw, const SkBitmap& bm, const SkPaint& paint);
+
     class AutoElement;
     class ResourceBucket;
 
     SkXMLWriter*                  fWriter;
     SkAutoTDelete<AutoElement>    fRootElement;
     SkAutoTDelete<ResourceBucket> fResourceBucket;
     SkBitmap                      fLegacyBitmap;
 };
 
 #endif // SkSVGDevice_DEFINED