Make comment ASCII in GrDrawTarget.h

R=robertphillips@google.com
TBR=robertphillips@google.com
NOTRYS=true

Author: bsalomon@google.com

Review URL: https://codereview.chromium.org/458383004
diff --git a/src/gpu/GrDrawTarget.h b/src/gpu/GrDrawTarget.h
index b5487dc..d1023d2 100644
--- a/src/gpu/GrDrawTarget.h
+++ b/src/gpu/GrDrawTarget.h
@@ -330,7 +330,7 @@
      * @param count           Number of paths to draw (length of indices array)
      * @param transforms      Array of individual transforms, one for each path
      * @param transformsType  Type of transformations in the array. Array contains
-                              PathTransformSize(transformsType) × count elements
+                              PathTransformSize(transformsType) * count elements
      * @param fill            Fill type for drawing all the paths
      */
     enum PathTransformType {