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/gm/smallpaths.cpp b/gm/smallpaths.cpp
index ddbb60d..b6a3b33 100644
--- a/gm/smallpaths.cpp
+++ b/gm/smallpaths.cpp
@@ -49,7 +49,7 @@
     for (int i = 1; i < n; i++) {
         rad += drad;
         SkScalar cosV, sinV = SkScalarSinCos(rad, &cosV);
-        path->lineTo(c + SkScalarMul(cosV, r), c + SkScalarMul(sinV, r));
+        path->lineTo(c + cosV * r, c + sinV * r);
     }
     path->close();
     return r * 2 * 6 / 5;