add roundOut that returns its result

src/core/SkScalerContext.cpp

Index: src/core/SkScalerContext.cpp
diff --git a/src/core/SkScalerContext.cpp b/src/core/SkScalerContext.cpp
index 8cb416e9ae4c06b90add84f9b86a561cb24b44de..20413a7dd7f292cab3406cc7aa7e4a0e1025520f 100644
--- a/src/core/SkScalerContext.cpp
+++ b/src/core/SkScalerContext.cpp
@@ -167,8 +167,7 @@ void SkScalerContext::getMetrics(SkGlyph* glyph) {
             }
         } else {
             // just use devPath
-            SkIRect ir;
-            devPath.getBounds().roundOut(&ir);
+            const SkIRect ir = devPath.getBounds().roundOut();
 
             if (ir.isEmpty() || !ir.is16Bit()) {
                 goto SK_ERROR;