Use SkXfermode as public facing enum for GrPorterDuffXP

src/gpu/GrGpu.h

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrGpu_DEFINED
 #define GrGpu_DEFINED
 
 #include "GrDrawTarget.h"
 #include "GrPathRendering.h"
 #include "GrProgramDesc.h"
 #include "SkPath.h"
 
 class GrContext;
 class GrIndexBufferAllocPool;
 class GrPath;
 class GrPathRange;
 class GrPathRenderer;
 class GrPathRendererChain;
 class GrPipeline;
 class GrPrimitiveProcessor;
 class GrStencilBuffer;
 class GrVertexBufferAllocPool;
 
 class GrGpu : public SkRefCnt {
 public:
     /**
-     * Additional blend coefficients for dual source blending, not exposed
-     * through GrPaint/GrContext.
-     */
-    enum ExtendedBlendCoeffs {
-        // source 2 refers to second output color when
-        // using dual source blending.
-        kS2C_GrBlendCoeff = kPublicGrBlendCoeffCount,
-        kIS2C_GrBlendCoeff,
-        kS2A_GrBlendCoeff,
-        kIS2A_GrBlendCoeff,
-
-        kTotalGrBlendCoeffCount
-    };
-
-    /**
      * Create an instance of GrGpu that matches the specified backend. If the requested backend is
      * not supported (at compile-time or run-time) this returns NULL. The context will not be
      * fully constructed and should not be used by GrGpu until after this function returns.
      */
     static GrGpu* Create(GrBackend, GrBackendContext, GrContext* context);
 
     ////////////////////////////////////////////////////////////////////////////
 
     GrGpu(GrContext* context);
     ~GrGpu() SK_OVERRIDE;
@@ skipping 476 matching lines @@
     int                                                                 fGpuTraceMarkerCount;
     GrTraceMarkerSet                                                    fActiveTraceMarkers;
     GrTraceMarkerSet                                                    fStoredTraceMarkers;
     // The context owns us, not vice-versa, so this ptr is not ref'ed by Gpu.
     GrContext*                                                          fContext;
 
     typedef SkRefCnt INHERITED;
 };
 
 #endif