add roundOut that returns its result

src/effects/SkPictureImageFilter.cpp

Index: src/effects/SkPictureImageFilter.cpp
diff --git a/src/effects/SkPictureImageFilter.cpp b/src/effects/SkPictureImageFilter.cpp
index 30fbac184a01281d349ee693ce5229c78f817970..0c95b328c0f8d44f4d6e7f76b34288effa5767ef 100644
--- a/src/effects/SkPictureImageFilter.cpp
+++ b/src/effects/SkPictureImageFilter.cpp
@@ -81,9 +81,8 @@ bool SkPictureImageFilter::onFilterImage(Proxy* proxy, const SkBitmap&, const Co
     }
 
     SkRect floatBounds;
-    SkIRect bounds;
     ctx.ctm().mapRect(&floatBounds, fCropRect);
-    floatBounds.roundOut(&bounds);
+    SkIRect bounds = floatBounds.roundOut();
     if (!bounds.intersect(ctx.clipBounds())) {
         return false;
     }