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/bench/PathBench.cpp b/bench/PathBench.cpp
index 10cffc2..3a1410a 100644
--- a/bench/PathBench.cpp
+++ b/bench/PathBench.cpp
@@ -272,10 +272,8 @@
         SkRandom rand (12);
         int i;
         for (i = 0; i < 100; i++) {
-            path->quadTo(SkScalarMul(rand.nextUScalar1(), SkIntToScalar(640)),
-                         SkScalarMul(rand.nextUScalar1(), SkIntToScalar(480)),
-                         SkScalarMul(rand.nextUScalar1(), SkIntToScalar(640)),
-                         SkScalarMul(rand.nextUScalar1(), SkIntToScalar(480)));
+            path->quadTo(rand.nextUScalar1() * 640, rand.nextUScalar1() * 480,
+                         rand.nextUScalar1() * 640, rand.nextUScalar1() * 480);
         }
         path->close();
     }