Remove tab parameter from GrGLSLMulVarBy4f function

src/effects/SkLightingImageFilter.cpp

 /*
  * Copyright 2012 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkLightingImageFilter.h"
 #include "SkBitmap.h"
 #include "SkColorPriv.h"
@@ skipping 1436 matching lines @@
     fsBuilder->codeAppend("\t\tvec3 surfaceToLight = ");
     SkString arg;
     arg.appendf("%s * m[4]", surfScale);
     fLight->emitSurfaceToLight(builder, arg.c_str());
     fsBuilder->codeAppend(";\n");
     fsBuilder->codeAppendf("\t\t%s = %s(%s(m, %s), surfaceToLight, ",
                            outputColor, lightFunc.c_str(), interiorNormalName.c_str(), surfScale);
     fLight->emitLightColor(builder, "surfaceToLight");
     fsBuilder->codeAppend(");\n");
     SkString modulate;
-    GrGLSLMulVarBy4f(&modulate, 2, outputColor, inputColor);
+    GrGLSLMulVarBy4f(&modulate, outputColor, inputColor);
     fsBuilder->codeAppend(modulate.c_str());
 }
 
 void GrGLLightingEffect::GenKey(const GrProcessor& proc,
                                 const GrGLCaps& caps, GrProcessorKeyBuilder* b) {
     b->add32(proc.cast<GrLightingEffect>().light()->type());
 }
 
 void GrGLLightingEffect::setData(const GrGLProgramDataManager& pdman,
                                  const GrProcessor& proc) {
@@ skipping 251 matching lines @@
 
     fsBuilder->codeAppendf("%s(%s)", fLightColorFunc.c_str(), surfaceToLight);
 }
 
 #endif
 
 SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_START(SkLightingImageFilter)
     SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkDiffuseLightingImageFilter)
     SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkSpecularLightingImageFilter)
 SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_END