Remove willReadDst from GrFragmentProcessor.

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 643 matching lines @@
 
     // Subclass must initialize this in its constructor.
     SkAutoTUnref<const GrDrawTargetCaps> fCaps;
 
     const GrTraceMarkerSet& getActiveTraceMarkers() { return fActiveTraceMarkers; }
 
     // Makes a copy of the dst if it is necessary for the draw. Returns false if a copy is required
     // but couldn't be made. Otherwise, returns true.  This method needs to be protected because it
     // needs to be accessed by GLPrograms to setup a correct drawstate
     bool setupDstReadIfNecessary(GrDrawState*,
-                                 const GrPrimitiveProcessor*,
                                  GrDeviceCoordTexture* dstCopy,
                                  const SkRect* drawBounds);
 
 private:
     /**
      * This will be called before allocating a texture as a dst for copySurface. This function
      * populates the dstDesc's config, flags, and origin so as to maximize efficiency and guarantee
      * success of the copySurface call.
      */
     void initCopySurfaceDstDesc(const GrSurface* src, GrSurfaceDesc* dstDesc) {
@@ skipping 177 matching lines @@
     virtual bool setupClip(GrDrawState*,
                            GrDrawState::AutoRestoreEffects* are,
                            GrDrawState::AutoRestoreStencil* ars,
                            GrScissorState* scissorState,
                            const SkRect* devBounds) SK_OVERRIDE;
 
     typedef GrDrawTarget INHERITED;
 };
 
 #endif