stop using SkScalarMul

BUG=skia:

Change-Id: Ie41d8665a1c62ba8eddc93d8cfefaf64ddc52ff8
Reviewed-on: https://skia-review.googlesource.com/8411
Reviewed-by: Ben Wagner <bungeman@google.com>
Commit-Queue: Mike Reed <reed@google.com>
diff --git a/tests/PaintTest.cpp b/tests/PaintTest.cpp
index 55a82a7..7ddcd0d 100644
--- a/tests/PaintTest.cpp
+++ b/tests/PaintTest.cpp
@@ -192,7 +192,7 @@
     SkRect maxR = fillR;
     SkScalar miter = SkMaxScalar(SK_Scalar1, paint.getStrokeMiter());
     SkScalar inset = paint.getStrokeJoin() == SkPaint::kMiter_Join ?
-                            SkScalarMul(paint.getStrokeWidth(), miter) :
+                            paint.getStrokeWidth() * miter :
                             paint.getStrokeWidth();
     maxR.inset(-inset, -inset);