Begin weaning GrClipMaskManager off of GrDrawTarget (take 2)

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 83 matching lines @@
      * Together these two functions flush all queued up draws to the Gpu.
      */
     void prepareBatches(GrBatchFlushState* flushState);
     void drawBatches(GrBatchFlushState* flushState);
 
     /**
      * Gets the capabilities of the draw target.
      */
     const GrCaps* caps() const { return fGpu->caps(); }
 
-    void drawBatch(const GrPipelineBuilder&, GrDrawBatch*);
+    void drawBatch(const GrPipelineBuilder&, GrDrawBatch*, const SkIRect* scissorRect = nullptr);
 
     /**
      * Draws path into the stencil buffer. The fill must be either even/odd or
      * winding (not inverse or hairline). It will respect the HW antialias flag
      * on the GrPipelineBuilder (if possible in the 3D API).  Note, we will never have an inverse
      * fill with stencil path
      */
     void stencilPath(const GrPipelineBuilder&, const SkMatrix& viewMatrix, const GrPath*,
                      GrPathRendering::FillType);
 
@@ skipping 143 matching lines @@
     SkTDArray<GrDrawTarget*>                    fDependencies;
     GrRenderTarget*                             fRenderTarget;
 
     bool                                        fDrawBatchBounds;
     int                                         fMaxBatchLookback;
 
     typedef SkRefCnt INHERITED;
 };
 
 #endif