replace SkScalarMulRound(a,b) with SkScalarRountToInt(a*b)

BUG=
R=sugoi@google.com

Review URL: https://codereview.chromium.org/111393010

git-svn-id: http://skia.googlecode.com/svn/trunk@12740 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/animator/SkDrawExtraPathEffect.cpp b/src/animator/SkDrawExtraPathEffect.cpp
index e973dbf..7b991d2 100644
--- a/src/animator/SkDrawExtraPathEffect.cpp
+++ b/src/animator/SkDrawExtraPathEffect.cpp
@@ -112,7 +112,7 @@
             SkApply* apply = (SkApply*) fDraw->addPath;
             apply->refresh(*fMaker);
             apply->activate(*fMaker);
-            apply->interpolate(*fMaker, SkScalarMulRound(distance, 1000));
+            apply->interpolate(*fMaker, SkScalarRoundToInt(distance * 1000));
             drawPath = (SkDrawPath*) apply->getScope();
         }
         SkMatrix m;
@@ -125,7 +125,7 @@
                 SkApply* apply = (SkApply*) fDraw->addMatrix;
                 apply->refresh(*fMaker);
                 apply->activate(*fMaker);
-                apply->interpolate(*fMaker, SkScalarMulRound(distance, 1000));
+                apply->interpolate(*fMaker, SkScalarRoundToInt(distance * 1000));
                 matrix = (SkDrawMatrix*) apply->getScope();
             }
             if (matrix) {