When ignoring color input don't use vertex attribs on gpu

src/gpu/gl/builders/GrGLProgramBuilder.cpp

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "gl/GrGLProgram.h"
 #include "gl/GrGLSLPrettyPrint.h"
 #include "gl/GrGLUniformHandle.h"
@@ skipping 33 matching lines @@
     GrGLSLExpr4 inputCoverage;
 
     if (GrGLProgramDesc::kUniform_ColorInput == header.fColorInput) {
         const char* name;
         fUniformHandles.fColorUni =
             this->addUniform(GrGLProgramBuilder::kFragment_Visibility,
                              kVec4f_GrSLType,
                              "Color",
                              &name);
         inputColor = GrGLSLExpr4(name);
+    } else if (GrGLProgramDesc::kAllOnes_ColorInput == header.fColorInput) {
+        inputColor = GrGLSLExpr4(1);
     }
 
     if (GrGLProgramDesc::kUniform_ColorInput == header.fCoverageInput) {
         const char* name;
         fUniformHandles.fCoverageUni =
             this->addUniform(GrGLProgramBuilder::kFragment_Visibility,
                              kVec4f_GrSLType,
                              "Coverage",
                              &name);
         inputCoverage = GrGLSLExpr4(name);
-    } else if (GrGLProgramDesc::kSolidWhite_ColorInput == header.fCoverageInput) {
+    } else if (GrGLProgramDesc::kAllOnes_ColorInput == header.fCoverageInput) {
         inputCoverage = GrGLSLExpr4(1);
     }
 
     this->emitCodeBeforeEffects(&inputColor, &inputCoverage);
 
     ///////////////////////////////////////////////////////////////////////////
     // emit the per-effect code for both color and coverage effects
 
     GrGLProgramDesc::EffectKeyProvider colorKeyProvider(
         &this->desc(), GrGLProgramDesc::EffectKeyProvider::kColor_EffectType);
@@ skipping 350 matching lines @@
 
     GrGLPathTexGenProgramEffectsBuilder pathTexGenEffectsBuilder(this,
                                                                  effectCnt);
     this->INHERITED::createAndEmitEffects(&pathTexGenEffectsBuilder,
                                           effectStages,
                                           effectCnt,
                                           keyProvider,
                                           inOutFSColor);
     return pathTexGenEffectsBuilder.finish();
 }