Use scratch keys for stencil buffers.

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 16 matching lines @@
 class GrGpuTraceMarker;
 class GrIndexBuffer;
 class GrIndexBufferAllocPool;
 class GrInOrderDrawBuffer;
 class GrLayerCache;
 class GrOvalRenderer;
 class GrPath;
 class GrPathRenderer;
 class GrResourceEntry;
 class GrResourceCache2;
-class GrStencilBuffer;
 class GrTestTarget;
 class GrTextContext;
 class GrTextureParams;
 class GrVertexBuffer;
 class GrVertexBufferAllocPool;
 class GrStrokeInfo;
 class GrSoftwarePathRenderer;
 class SkStrokeRec;
 
 class SK_API GrContext : public SkRefCnt {
@@ skipping 835 matching lines @@
     const GrIndexBuffer* getQuadIndexBuffer() const;
     GrAARectRenderer* getAARectRenderer() { return fAARectRenderer; }
     GrResourceCache2* getResourceCache2() { return fResourceCache2; }
 
     // Called by tests that draw directly to the context via GrDrawTarget
     void getTestTarget(GrTestTarget*);
 
     void addGpuTraceMarker(const GrGpuTraceMarker* marker);
     void removeGpuTraceMarker(const GrGpuTraceMarker* marker);
 
-    /**
-     * Stencil buffers add themselves to the cache using addStencilBuffer. findStencilBuffer is
-     * called to check the cache for a SB that matches an RT's criteria.
-     */
-    void addStencilBuffer(GrStencilBuffer* sb);
-    GrStencilBuffer* findAndRefStencilBuffer(int width, int height, int sampleCnt);
-
     GrPathRenderer* getPathRenderer(
                     const GrDrawTarget* target,
                     const GrDrawState*,
                     const SkPath& path,
                     const SkStrokeRec& stroke,
                     bool allowSW,
                     GrPathRendererChain::DrawType drawType = GrPathRendererChain::kColor_DrawType,
                     GrPathRendererChain::StencilSupport* stencilSupport = NULL);
 
     /**
@@ skipping 102 matching lines @@
     /**
      *  This callback allows the resource cache to callback into the GrContext
      *  when the cache is still over budget after a purge.
      */
     static void OverBudgetCB(void* data);
 
     typedef SkRefCnt INHERITED;
 };
 
 #endif