Move clip mask generation into GrReducedClip

include/gpu/GrContext.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 GrContext_DEFINED
 #define GrContext_DEFINED
 
@@ skipping 412 matching lines @@
 
     SkTDArray<CleanUpData>                  fCleanUpData;
 
     const uint32_t                          fUniqueID;
 
     SkAutoTDelete<GrDrawingManager>         fDrawingManager;
 
     GrAuditTrail                            fAuditTrail;
 
     // TODO: have the GrClipStackClip use drawContexts and rm this friending
-    friend class GrClipStackClip;  // for access to drawingManager
-    friend class GrDrawingManager; // for access to drawingManager for ProgramUnitTest
     friend class GrContextPriv;
 
-    GrDrawingManager* drawingManager() { return fDrawingManager; }
-
     GrContext(); // init must be called after the constructor.
     bool init(GrBackend, GrBackendContext, const GrContextOptions& options);
 
     void initMockContext();
     void initCommon(const GrContextOptions&);
 
     /**
      * These functions create premul <-> unpremul effects if it is possible to generate a pair
      * of effects that make a readToUPM->writeToPM->readToUPM cycle invariant. Otherwise, they
      * return NULL. They also can perform a swizzle as part of the draw.
@@ skipping 38 matching lines @@
     SkAutoTUnref<const GrCaps>  fCaps;
     uint32_t                    fContextUniqueID;
 
     friend class GrContext;
     friend class SkImage;
 
     typedef SkRefCnt INHERITED;
 };
 
 #endif