Remove localcoordchange functions off paint

src/gpu/GrDrawTarget.h

 /*
  * Copyright 2010 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrDrawTarget_DEFINED
 #define GrDrawTarget_DEFINED
 
@@ skipping 285 matching lines @@
                    int count,
                    GrPathRendering::FillType fill);
 
     /**
      * Helper function for drawing rects. It performs a geometry src push and pop
      * and thus will finalize any reserved geometry.
      *
      * @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
-     *                    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.
+     * @param localMatrix 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
      */
     void drawRect(GrDrawState* ds,
                   GrColor color,
                   const SkRect& rect,
                   const SkRect* localRect,
                   const SkMatrix* localMatrix) {
         AutoGeometryPush agp(this);
         this->onDrawRect(ds, color, rect, localRect, localMatrix);
     }
 
@@ skipping 529 matching lines @@
     virtual bool setupClip(const SkRect* devBounds,
                            GrDrawState::AutoRestoreEffects* are,
                            GrDrawState::AutoRestoreStencil* ars,
                            GrDrawState*,
                            GrScissorState* scissorState) SK_OVERRIDE;
 
     typedef GrDrawTarget INHERITED;
 };
 
 #endif