fLuminance is unsed unless SK_GAMMA_APPLY_TO_A8 is defined

src/gpu/effects/GrDistanceFieldTextureEffect.cpp

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrDistanceFieldTextureEffect.h"
 #include "GrInvariantOutput.h"
 #include "GrTexture.h"
@@ skipping 167 matching lines @@
         key |= ComputePosKey(gp.viewMatrix()) << 25;
         b->add32(key);
     }
 
 private:
     GrColor       fColor;
     UniformHandle fColorUniform;
     UniformHandle fTextureSizeUni;
     SkISize       fTextureSize;
     UniformHandle fLuminanceUni;
+#ifdef SK_GAMMA_APPLY_TO_A8
     float         fLuminance;
+#endif
 
     typedef GrGLGeometryProcessor INHERITED;
 };
 
 ///////////////////////////////////////////////////////////////////////////////
 
 GrDistanceFieldTextureEffect::GrDistanceFieldTextureEffect(GrColor color,
                                                            const SkMatrix& viewMatrix,
                                                            GrTexture* texture,
                                                            const GrTextureParams& params,
@@ skipping 672 matching lines @@
     uint32_t flags = kUseLCD_DistanceFieldEffectFlag;
     flags |= random->nextBool() ? kUniformScale_DistanceFieldEffectMask : 0;
     flags |= random->nextBool() ? kBGR_DistanceFieldEffectFlag : 0;
     return GrDistanceFieldLCDTextureEffect::Create(GrRandomColor(random),
                                                    GrProcessorUnitTest::TestMatrix(random),
                                                    textures[texIdx], params,
                                                    textures[texIdx2], params2,
                                                    textColor,
                                                    flags);
 }