add src-rect-constraint to drawImageRect

gm/bigtileimagefilter.cpp

Index: gm/bigtileimagefilter.cpp
diff --git a/gm/bigtileimagefilter.cpp b/gm/bigtileimagefilter.cpp
index f465fe4d38c0a5a67f14d207ecb2a1dc8cc21202..e4855ba9aa5a0bd20e64ffd52d30a3878a1e29fb 100644
--- a/gm/bigtileimagefilter.cpp
+++ b/gm/bigtileimagefilter.cpp
@@ -84,7 +84,8 @@ protected:
             SkRect bound3 = SkRect::MakeXYWH(320, 320,
                                              SkIntToScalar(kBitmapSize),
                                              SkIntToScalar(kBitmapSize));
-            canvas->drawBitmapRectToRect(fGreenBitmap, &bound2, bound3);
+            canvas->drawBitmapRect(fGreenBitmap, &bound2, bound3, NULL,
+                                   SkCanvas::kStrict_SrcRectConstraint);
             canvas->restore();
         }
     }