skip call to clip::apply when clip is wide open

include/gpu/GrDrawContext.h

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrDrawContext_DEFINED
 #define GrDrawContext_DEFINED
 
@@ skipping 284 matching lines @@
     SkDEBUGCODE(void validate() const;)
 
 private:
     friend class GrAtlasTextBlob; // for access to drawBatch
     friend class GrStencilAndCoverTextContext; // for access to drawBatch
 
     friend class GrDrawingManager; // for ctor
     friend class GrDrawContextPriv;
     friend class GrTestTarget;  // for access to getDrawTarget
     friend class GrSWMaskHelper;                 // for access to drawBatch
-    friend class GrClipMaskManager;              // for access to drawBatch
+    friend class GrClipStackClip;                // for access to drawBatch
 
     // All the path renderers currently make their own batches
     friend class GrSoftwarePathRenderer;         // for access to drawBatch
     friend class GrAAConvexPathRenderer;         // for access to drawBatch
     friend class GrDashLinePathRenderer;         // for access to drawBatch
     friend class GrAAHairLinePathRenderer;       // for access to drawBatch
     friend class GrAALinearizingConvexPathRenderer;  // for access to drawBatch
     friend class GrAADistanceFieldPathRenderer;  // for access to drawBatch
     friend class GrDefaultPathRenderer;          // for access to drawBatch
     friend class GrPLSPathRenderer;              // for access to drawBatch
@@ skipping 44 matching lines @@
     GrInstancedPipelineInfo           fInstancedPipelineInfo;
 
     SkSurfaceProps                    fSurfaceProps;
     GrAuditTrail*                     fAuditTrail;
 
     // In debug builds we guard against improper thread handling
     SkDEBUGCODE(mutable GrSingleOwner* fSingleOwner;)
 };
 
 #endif