Remove backend factories

src/gpu/effects/GrPorterDuffXferProcessor.h

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrPorterDuffXferProcessor_DEFINED
 #define GrPorterDuffXferProcessor_DEFINED
 
 #include "GrTypes.h"
 #include "GrXferProcessor.h"
 #include "SkXfermode.h"
 
-class GrBackendFragmentProcessorFactory;
 class GrDrawState;
-class GrGLPorterDuffXferProcessor;
 class GrInvariantOutput;
 
 class GrPorterDuffXferProcessor : public GrXferProcessor {
 public:
     static GrXferProcessor* Create(GrBlendCoeff srcBlend, GrBlendCoeff dstBlend) {
         return SkNEW_ARGS(GrPorterDuffXferProcessor, (srcBlend, dstBlend));
     }
 
     virtual ~GrPorterDuffXferProcessor();
 
-    virtual const GrBackendFragmentProcessorFactory& getFactory() const SK_OVERRIDE;
+    virtual const char* name() const { return "Porter Duff"; }
 
-    typedef GrGLPorterDuffXferProcessor GLProcessor;
-    static const char* Name() { return "Porter Duff"; }
+    virtual void getGLProcessorKey(const GrGLCaps& caps,
+                                   GrProcessorKeyBuilder* b) const SK_OVERRIDE;
+
+    virtual GrGLFragmentProcessor* createGLInstance() const SK_OVERRIDE;
 
 private:
     GrPorterDuffXferProcessor(GrBlendCoeff srcBlend, GrBlendCoeff dstBlend);
 
     virtual bool onIsEqual(const GrFragmentProcessor& fpBase) const SK_OVERRIDE {
         const GrPorterDuffXferProcessor& xp = fpBase.cast<GrPorterDuffXferProcessor>();
         if (fSrcBlend != xp.fSrcBlend || fDstBlend != xp.fDstBlend) {
             return false;
         }
         return true;
@@ skipping 29 matching lines @@
     GrPorterDuffXPFactory(GrBlendCoeff src, GrBlendCoeff dst)
         : fSrc(src), fDst(dst) {}
 
     GrBlendCoeff fSrc;
     GrBlendCoeff fDst;
 
     typedef GrXPFactory INHERITED;
 };
 
 #endif