add src-rect-constraint to drawImageRect

src/core/SkDevice.cpp

Index: src/core/SkDevice.cpp
diff --git a/src/core/SkDevice.cpp b/src/core/SkDevice.cpp
index 90161b4eb386d3db240b1cc67e19f7fc572ba5b8..6922e0d7ce04e3e9d724728d81b02c0e4f207dce 100644
--- a/src/core/SkDevice.cpp
+++ b/src/core/SkDevice.cpp
@@ -154,11 +154,12 @@ void SkBaseDevice::drawImage(const SkDraw& draw, const SkImage* image, SkScalar
 }
 
 void SkBaseDevice::drawImageRect(const SkDraw& draw, const SkImage* image, const SkRect* src,
-                                 const SkRect& dst, const SkPaint& paint) {
+                                 const SkRect& dst, const SkPaint& paint,
+                                 SkCanvas::SrcRectConstraint constraint) {
     // Default impl : turns everything into raster bitmap
     SkBitmap bm;
     if (as_IB(image)->getROPixels(&bm)) {
-        this->drawBitmapRect(draw, bm, src, dst, paint, SkCanvas::kNone_DrawBitmapRectFlag);
+        this->drawBitmapRect(draw, bm, src, dst, paint, (SK_VIRTUAL_CONSTRAINT_TYPE)constraint);
     }
 }
 
@@ -168,7 +169,7 @@ void SkBaseDevice::drawImageNine(const SkDraw& draw, const SkImage* image, const
 
     SkRect srcR, dstR;
     while (iter.next(&srcR, &dstR)) {
-        this->drawImageRect(draw, image, &srcR, dstR, paint);
+        this->drawImageRect(draw, image, &srcR, dstR, paint, SkCanvas::kStrict_SrcRectConstraint);
     }
 }
 
@@ -178,7 +179,8 @@ void SkBaseDevice::drawBitmapNine(const SkDraw& draw, const SkBitmap& bitmap, co
     
     SkRect srcR, dstR;
     while (iter.next(&srcR, &dstR)) {
-        this->drawBitmapRect(draw, bitmap, &srcR, dstR, paint, SkCanvas::kNone_DrawBitmapRectFlag);
+        this->drawBitmapRect(draw, bitmap, &srcR, dstR, paint,
+                             (SK_VIRTUAL_CONSTRAINT_TYPE)SkCanvas::kStrict_SrcRectConstraint);
     }
 }