Move GrInvariantOutput out of GrProcessor and into its own class.

src/gpu/effects/GrSimpleTextureEffect.h

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrSimpleTextureEffect_DEFINED
 #define GrSimpleTextureEffect_DEFINED
 
 #include "GrSingleTextureEffect.h"
 
 class GrGLSimpleTextureEffect;
+class GrInvariantOutput;
 
 /**
  * The output color of this effect is a modulation of the input color and a sample from a texture.
  * It allows explicit specification of the filtering and wrap modes (GrTextureParams). It can use
  * local coords, positions, or a custom vertex attribute as input texture coords. The input coords
  * can have a matrix applied in the VS in both the local and position cases but not with a custom
  * attribute coords at this time. It will add a varying to input interpolate texture coords to the
  * FS.
  */
 class GrSimpleTextureEffect : public GrSingleTextureEffect {
@@ skipping 39 matching lines @@
 
     GrSimpleTextureEffect(GrTexture* texture,
                           const SkMatrix& matrix,
                           const GrTextureParams& params,
                           GrCoordSet coordSet)
         : GrSingleTextureEffect(texture, matrix, params, coordSet) {
     }
 
     virtual bool onIsEqual(const GrFragmentProcessor& other) const SK_OVERRIDE { return true; }
 
-    virtual void onComputeInvariantOutput(InvariantOutput* inout) const SK_OVERRIDE;
+    virtual void onComputeInvariantOutput(GrInvariantOutput* inout) const SK_OVERRIDE;
 
     GR_DECLARE_FRAGMENT_PROCESSOR_TEST;
 
     typedef GrSingleTextureEffect INHERITED;
 };
 
 #endif