Remove backend factories

src/gpu/effects/GrConfigConversionEffect.h

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrConfigConversionEffect_DEFINED
 #define GrConfigConversionEffect_DEFINED
 
 #include "GrSingleTextureEffect.h"
 
 class GrFragmentStage;
-class GrGLConfigConversionEffect;
 class GrInvariantOutput;
 
 /**
  * This class is used to perform config conversions. Clients may want to read/write data that is
  * unpremultiplied. Also on some systems reading/writing BGRA or RGBA is faster. In those cases we
  * read/write using the faster path and perform an R/B swap in the shader if the client data is in
  * the slower config.
  */
 class GrConfigConversionEffect : public GrSingleTextureEffect {
 public:
     /**
      * The PM->UPM or UPM->PM conversions to apply.
      */
     enum PMConversion {
         kNone_PMConversion = 0,
         kMulByAlpha_RoundUp_PMConversion,
         kMulByAlpha_RoundDown_PMConversion,
         kDivByAlpha_RoundUp_PMConversion,
         kDivByAlpha_RoundDown_PMConversion,
 
         kPMConversionCnt
     };
 
     static const GrFragmentProcessor* Create(GrTexture*, bool swapRedAndBlue, PMConversion,
                                              const SkMatrix&);
 
-    static const char* Name() { return "Config Conversion"; }
-    typedef GrGLConfigConversionEffect GLProcessor;
+    virtual const char* name() const SK_OVERRIDE { return "Config Conversion"; }
 
-    virtual const GrBackendFragmentProcessorFactory& getFactory() const SK_OVERRIDE;
+    virtual void getGLProcessorKey(const GrGLCaps&, GrProcessorKeyBuilder*) const SK_OVERRIDE;
+
+    virtual GrGLFragmentProcessor* createGLInstance() const SK_OVERRIDE;
 
     bool swapsRedAndBlue() const { return fSwapRedAndBlue; }
     PMConversion  pmConversion() const { return fPMConversion; }
 
     // This function determines whether it is possible to choose PM->UPM and UPM->PM conversions
     // for which in any PM->UPM->PM->UPM sequence the two UPM values are the same. This means that
     // if pixels are read back to a UPM buffer, written back to PM to the GPU, and read back again
     // both reads will produce the same result. This test is quite expensive and should not be run
     // multiple times for a given context.
     static void TestForPreservingPMConversions(GrContext* context,
@@ skipping 12 matching lines @@
 
     bool            fSwapRedAndBlue;
     PMConversion    fPMConversion;
 
     GR_DECLARE_FRAGMENT_PROCESSOR_TEST;
 
     typedef GrSingleTextureEffect INHERITED;
 };
 
 #endif