Add SkImage->draw() call with src and dst rects.

src/image/SkImage_Raster.cpp

Index: src/image/SkImage_Raster.cpp
diff --git a/src/image/SkImage_Raster.cpp b/src/image/SkImage_Raster.cpp
index 5e1e8a02f3ef3ef72098fb279acc4b2794202c92..3e2685606de4dbfd88e07e35d7dbbe38b650e969 100644
--- a/src/image/SkImage_Raster.cpp
+++ b/src/image/SkImage_Raster.cpp
@@ -55,6 +55,7 @@ public:
     virtual ~SkImage_Raster();
 
     virtual void onDraw(SkCanvas*, SkScalar, SkScalar, const SkPaint*) SK_OVERRIDE;
+    virtual void onDrawRectToRect(SkCanvas*, const SkRect*, const SkRect&, const SkPaint*) SK_OVERRIDE;
     virtual bool getROPixels(SkBitmap*) const SK_OVERRIDE;
 
     // exposed for SkSurface_Raster via SkNewImageFromPixelRef
@@ -109,6 +110,10 @@ void SkImage_Raster::onDraw(SkCanvas* canvas, SkScalar x, SkScalar y, const SkPa
     canvas->drawBitmap(fBitmap, x, y, paint);
 }
 
+void SkImage_Raster::onDrawRectToRect(SkCanvas* canvas, const SkRect* src, const SkRect& dst, const SkPaint* paint) {
+    canvas->drawBitmapRectToRect(fBitmap, src, dst, paint);
+}
+
 bool SkImage_Raster::getROPixels(SkBitmap* dst) const {
     *dst = fBitmap;
     return true;