Initial CL to move color / coverage off of drawstate

src/gpu/GrSWMaskHelper.h

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrSWMaskHelper_DEFINED
 #define GrSWMaskHelper_DEFINED
 
@@ skipping 75 matching lines @@
     // It draws with "texture" as a path mask into "target" using "rect" as
     // geometry and the current drawState. The current drawState is altered to
     // accommodate the mask.
     // Note that this method assumes that the GrPaint::kTotalStages slot in
     // the draw state can be used to hold the mask texture stage.
     // This method is really only intended to be used with the
     // output of DrawPathMaskToTexture.
     static void DrawToTargetWithPathMask(GrTexture* texture,
                                          GrDrawTarget* target,
                                          GrDrawState* drawState,
+                                         GrColor,
                                          const SkIRect& rect);
 
 private:
     // Helper function to get a scratch texture suitable for capturing the
     // result (i.e., right size & format)
     GrTexture* createTexture();
 
     GrContext*      fContext;
     SkMatrix        fMatrix;
     SkBitmap        fBM;
@@ skipping 24 matching lines @@
                          const void *data, int rowbytes);
 
     // Compresses the bitmap stored in fBM and sends the compressed data
     // to the GPU to be stored in 'texture' using sendTextureData.
     void compressTextureData(GrTexture *texture, const GrSurfaceDesc& desc);
 
     typedef SkNoncopyable INHERITED;
 };
 
 #endif // GrSWMaskHelper_DEFINED