add roundOut that returns its result
BUG=skia:
Review URL: https://codereview.chromium.org/742663002
diff --git a/src/effects/SkTileImageFilter.cpp b/src/effects/SkTileImageFilter.cpp
index bebf8f0..04c62d0 100644
--- a/src/effects/SkTileImageFilter.cpp
+++ b/src/effects/SkTileImageFilter.cpp
@@ -36,8 +36,7 @@
SkRect dstRect;
ctx.ctm().mapRect(&dstRect, fDstRect);
- SkIRect dstIRect;
- dstRect.roundOut(&dstIRect);
+ const SkIRect dstIRect = dstRect.roundOut();
int w = dstIRect.width();
int h = dstIRect.height();
if (!fSrcRect.width() || !fSrcRect.height() || !w || !h) {