Allow GrGLEffects to produce variable length keys.

src/gpu/gl/GrGLShaderBuilder.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 GrGLShaderBuilder_DEFINED
 #define GrGLShaderBuilder_DEFINED
 
@@ skipping 13 matching lines @@
 class GrEffectStage;
 class GrGLProgramDesc;
 
 /**
   Contains all the incremental state of a shader as it is being built,as well as helpers to
   manipulate that state.
 */
 class GrGLShaderBuilder {
 public:
     typedef GrTAllocator<GrGLShaderVar> VarArray;
-    typedef GrBackendEffectFactory::EffectKey EffectKey;
     typedef GrGLProgramEffects::TextureSampler TextureSampler;
     typedef GrGLProgramEffects::TransformedCoordsArray TransformedCoordsArray;
     typedef GrGLUniformManager::BuilderUniform BuilderUniform;
 
     enum ShaderVisibility {
         kVertex_Visibility   = 0x1,
         kGeometry_Visibility = 0x2,
         kFragment_Visibility = 0x4,
     };
 
@@ skipping 469 matching lines @@
                                                      int effectCnt,
                                                      const GrGLProgramDesc::EffectKeyProvider&,
                                                      GrGLSLExpr4* inOutFSColor) SK_OVERRIDE;
 
     virtual void emitCodeAfterEffects() SK_OVERRIDE {}
 
     typedef GrGLShaderBuilder INHERITED;
 };
 
 #endif