fix non-square stroke rects (non-aa)

src/core/SkScan_Hairline.cpp

Index: src/core/SkScan_Hairline.cpp
diff --git a/src/core/SkScan_Hairline.cpp b/src/core/SkScan_Hairline.cpp
index fc9e82818d84bf9aa7135964de9fb4e21c498def..083dc0df5f8d93a21be95b5ec58c6cb52c63af9f 100644
--- a/src/core/SkScan_Hairline.cpp
+++ b/src/core/SkScan_Hairline.cpp
@@ -641,7 +641,7 @@ void SkScan::FrameRect(const SkRect& r, const SkPoint& strokeSize,
     outer.set(r.fLeft - rx, r.fTop - ry,
                 r.fRight + rx, r.fBottom + ry);
 
-    if (r.width() <= dx || r.height() <= dx) {
+    if (r.width() <= dx || r.height() <= dy) {
         SkScan::FillRect(outer, clip, blitter);
         return;
     }