Create new target to hold gpu test code, enable direct testing of GrEffects in GM.

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 15 matching lines @@
 class GrFontCache;
 class GrGpu;
 class GrIndexBuffer;
 class GrIndexBufferAllocPool;
 class GrInOrderDrawBuffer;
 class GrOvalRenderer;
 class GrPathRenderer;
 class GrResourceEntry;
 class GrResourceCache;
 class GrStencilBuffer;
+class GrTestTarget;
 class GrTextureParams;
 class GrVertexBuffer;
 class GrVertexBufferAllocPool;
 class GrSoftwarePathRenderer;
 class SkStrokeRec;
 
 class SK_API GrContext : public GrRefCnt {
 public:
     SK_DECLARE_INST_COUNT(GrContext)
 
@@ skipping 772 matching lines @@
     };
 
     ///////////////////////////////////////////////////////////////////////////
     // Functions intended for internal use only.
     GrGpu* getGpu() { return fGpu; }
     const GrGpu* getGpu() const { return fGpu; }
     GrFontCache* getFontCache() { return fFontCache; }
     GrDrawTarget* getTextTarget();
     const GrIndexBuffer* getQuadIndexBuffer() const;
 
+    // Called by tests that draw directly to the context via GrDrawTarget
+    void getTestTarget(GrTestTarget*);
+
     /**
      * 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* findStencilBuffer(int width, int height, int sampleCnt);
 
     GrPathRenderer* getPathRenderer(
                     const SkPath& path,
                     const SkStrokeRec& stroke,
@@ skipping 175 matching lines @@
     }
 
     GrTexture* texture() { return fTexture; }
 
 private:
     GrContext*                    fContext;
     GrTexture*                    fTexture;
 };
 
 #endif