Remove backend factories

src/gpu/GrProgramDesc.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 GrProgramDesc_DEFINED
 #define GrProgramDesc_DEFINED
 
-#include "GrBackendProcessorFactory.h"
 #include "GrColor.h"
 #include "GrTypesPriv.h"
 #include "SkChecksum.h"
 
 class GrGpuGL;
 
 /** This class describes a program to generate. It also serves as a program cache key. Very little
     of this is GL-specific. The GL-specific parts could be factored out into a subclass. */
 class GrProgramDesc {
 public:
@@ skipping 175 matching lines @@
         kPreAllocSize = kHeaderOffset + kHeaderSize +
                         kMaxPreallocProcessors * sizeof(uint32_t) * kIntsPerProcessor,
     };
 
     SkSTArray<kPreAllocSize, uint8_t, true> fKey;
 
     friend class GrGLProgramDescBuilder;
 };
 
 #endif