Make texture domain a helper so that it can be incorporated into other effects.

src/gpu/gl/GrGLEffect.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 GrGLEffect_DEFINED
 #define GrGLEffect_DEFINED
 
@@ skipping 22 matching lines @@
 
 class GrDrawEffect;
 class GrGLTexture;
 class GrGLVertexEffect;
 
 class GrGLEffect {
 
 public:
     typedef GrBackendEffectFactory::EffectKey EffectKey;
     typedef GrGLProgramEffects::TransformedCoordsArray TransformedCoordsArray;
+    typedef GrGLProgramEffects::TextureSampler TextureSampler;
     typedef GrGLProgramEffects::TextureSamplerArray TextureSamplerArray;
 
     enum {
         kNoEffectKey = GrBackendEffectFactory::kNoEffectKey,
         // the number of bits in EffectKey available to GenKey
         kEffectKeyBits = GrBackendEffectFactory::kEffectKeyBits,
     };
 
     GrGLEffect(const GrBackendEffectFactory& factory)
         : fFactory(factory)
@@ skipping 50 matching lines @@
 protected:
     const GrBackendEffectFactory& fFactory;
 
 private:
     friend class GrGLVertexEffect; // to set fIsVertexEffect
 
     bool fIsVertexEffect;
 };
 
 #endif