Add processor info dumping to non-legacy mesh draw ops

Change-Id: I2ee77f0971a1b627905ac547bc0511042c40ac38
Reviewed-on: https://skia-review.googlesource.com/19816
Commit-Queue: Brian Salomon <bsalomon@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>
diff --git a/src/gpu/ops/GrNonAAStrokeRectOp.cpp b/src/gpu/ops/GrNonAAStrokeRectOp.cpp
index 4177b65..016c637 100644
--- a/src/gpu/ops/GrNonAAStrokeRectOp.cpp
+++ b/src/gpu/ops/GrNonAAStrokeRectOp.cpp
@@ -63,7 +63,8 @@
                 "Color: 0x%08x, Rect [L: %.2f, T: %.2f, R: %.2f, B: %.2f], "
                 "StrokeWidth: %.2f\n",
                 fColor, fRect.fLeft, fRect.fTop, fRect.fRight, fRect.fBottom, fStrokeWidth);
-        string.append(INHERITED::dumpInfo());
+        string += fHelper.dumpInfo();
+        string += INHERITED::dumpInfo();
         return string;
     }