add src-rect-constraint to drawImageRect

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 19 matching lines @@
                   const SkMatrix* prePathMatrix = NULL,
                   bool pathIsMutable = false) override;
 
     void drawBitmap(const SkDraw&, const SkBitmap& bitmap,
                     const SkMatrix& matrix, const SkPaint& paint) override;
     void drawSprite(const SkDraw&, const SkBitmap& bitmap,
                     int x, int y, const SkPaint& paint) override;
     void drawBitmapRect(const SkDraw&, const SkBitmap&,
                         const SkRect* srcOrNull, const SkRect& dst,
                         const SkPaint& paint,
-                        SkCanvas::DrawBitmapRectFlags flags) override;
+                        SK_VIRTUAL_CONSTRAINT_TYPE) override;
 
     void drawText(const SkDraw&, const void* text, size_t len,
                   SkScalar x, SkScalar y, const SkPaint& paint) override;
     void drawPosText(const SkDraw&, const void* text, size_t len,
                      const SkScalar pos[], int scalarsPerPos,
                      const SkPoint& offset, const SkPaint& paint) override;
     void drawTextOnPath(const SkDraw&, const void* text, size_t len,
                         const SkPath& path, const SkMatrix* matrix,
                         const SkPaint& paint) override;
     void drawVertices(const SkDraw&, SkCanvas::VertexMode, int vertexCount,
@@ skipping 17 matching lines @@
 
     SkXMLWriter*                  fWriter;
     SkAutoTDelete<AutoElement>    fRootElement;
     SkAutoTDelete<ResourceBucket> fResourceBucket;
     SkBitmap                      fLegacyBitmap;
 
     typedef SkBaseDevice INHERITED;
 };
 
 #endif // SkSVGDevice_DEFINED