Set resScale on stroker when stroking path on gpu.

src/gpu/GrContext.cpp

Index: src/gpu/GrContext.cpp
diff --git a/src/gpu/GrContext.cpp b/src/gpu/GrContext.cpp
index 04e3f8fa9ff16aee0b03f47eaf8b1393a3512ae9..be27e9c7c49b303d0bd51a08d56e9f83cc93fb2e 100755
--- a/src/gpu/GrContext.cpp
+++ b/src/gpu/GrContext.cpp
@@ -1451,6 +1451,7 @@ void GrContext::internalDrawPath(GrDrawTarget* target,
     if (NULL == pr) {
         if (!GrPathRenderer::IsStrokeHairlineOrEquivalent(*stroke, viewMatrix, NULL)) {
             // It didn't work the 1st time, so try again with the stroked path
+            stroke.writable()->setResScale(SkScalarAbs(viewMatrix.getMaxScale()));
             if (stroke->applyToPath(tmpPath.init(), *pathPtr)) {
                 pathPtr = tmpPath.get();
                 stroke.writable()->setFillStyle();