Add layout qualifiers to GrGLShaderBuilder

src/gpu/gl/builders/GrGLVertexShaderBuilder.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 "GrGLVertexShaderBuilder.h"
 #include "GrGLProgramBuilder.h"
 #include "../GrGLGpu.h"
@@ skipping 63 matching lines @@
     int vaCount = primProc.numAttribs();
     for (int i = 0; i < vaCount; i++) {
         GL_CALL(BindAttribLocation(programID, i, primProc.getAttrib(i).fName));
     }
     return;
 }
 
 bool
 GrGLVertexBuilder::compileAndAttachShaders(GrGLuint programId, SkTDArray<GrGLuint>* shaderIds) {
     this->versionDecl() = GrGetGLSLVersionDecl(fProgramBuilder->ctxInfo());
+    this->compileAndAppendLayoutQualifiers();
     fProgramBuilder->appendUniformDecls(GrGLProgramBuilder::kVertex_Visibility, &this->uniforms());
     this->appendDecls(fInputs, &this->inputs());
     this->appendDecls(fOutputs, &this->outputs());
     return this->finalize(programId, GR_GL_VERTEX_SHADER, shaderIds);
 }
 
 bool GrGLVertexBuilder::addAttribute(const GrShaderVar& var) {
     SkASSERT(GrShaderVar::kAttribute_TypeModifier == var.getTypeModifier());
     for (int i = 0; i < fInputs.count(); ++i) {
         const GrGLShaderVar& attr = fInputs[i];
         // if attribute already added, don't add it again
         if (attr.getName().equals(var.getName())) {
             return false;
         }
     }
     fInputs.push_back(var);
     return true;
 }