Remove localcoordchange functions off paint

src/gpu/GrDrawTarget.h

Index: src/gpu/GrDrawTarget.h
diff --git a/src/gpu/GrDrawTarget.h b/src/gpu/GrDrawTarget.h
index 64cbc8781eba2048ead8e786bd9e87b3e6a1b883..348091e3cbb1d0fa3b0222d2500b8d5c324876e9 100644
--- a/src/gpu/GrDrawTarget.h
+++ b/src/gpu/GrDrawTarget.h
@@ -303,7 +303,7 @@ public:
      * @param rect        the rect to draw
      * @param localRect   optional rect that specifies local coords to map onto
      *                    rect. If NULL then rect serves as the local coords.
-     * @param localMatrix optional matrix applied to localRect. If
+     * @param localMatrix optional matrix applied to localRect(if not NULL), or local coords. If

[bsalomon, 2014/12/22 21:13:55]

Howabout,

"Optional local matrix. The local coordinates are specified by localRect, or if
it is NULL by rect. This matrix applies to the coordinate implied by that
rectangle before it is input to GrCoordTransforms that read local coordinates."

The existing comment references "srcRect" and "srcMatrix" which were renamed to
"localRect" and "localMatrix".

      *                    srcRect is non-NULL and srcMatrix is non-NULL
      *                    then srcRect will be transformed by srcMatrix.
      *                    srcMatrix can be NULL when no srcMatrix is desired.