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

src/gpu/gl/GrGLProgramDesc.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 GrGLProgramDesc_DEFINED
 #define GrGLProgramDesc_DEFINED
 
@@ skipping 81 matching lines @@
         return !(*this == other);
     }
 
     static bool Less(const GrGLProgramDesc& a, const GrGLProgramDesc& b) {
         return memcmp(a.asKey(), b.asKey(), a.keyLength() & ~0x3) < 0;
     }
 
 private:
     // Specifies where the initial color comes from before the stages are applied.
     enum ColorInput {
-        kSolidWhite_ColorInput,
+        kAllOnes_ColorInput,
         kAttribute_ColorInput,
         kUniform_ColorInput,
 
         kColorInputCnt
     };
 
     enum CoverageOutput {
         // modulate color and coverage, write result as the color output.
         kModulate_CoverageOutput,
         // Writes color*coverage as the primary color output and also writes coverage as the
@@ skipping 141 matching lines @@
     friend class GrGLProgram;
     friend class GrGLProgramBuilder;
     friend class GrGLFullProgramBuilder;
     friend class GrGLFragmentOnlyProgramBuilder;
     friend class GrGLVertexShaderBuilder;
     friend class GrGLFragmentShaderBuilder;
     friend class GrGLGeometryShaderBuilder;
 };
 
 #endif