Add version string and force highp NDS transfrom to GLSLCaps

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 "../GrGLGLSL.h"
@@ skipping 21 matching lines @@
     for (int i = 0; i < vaCount; i++) {
         this->addAttribute(&gp.getAttrib(i));
     }
     return;
 }
 
 void GrGLVertexBuilder::transformToNormalizedDeviceSpace(const GrShaderVar& posVar) {
     SkASSERT(!fRtAdjustName);
 
     GrSLPrecision precision = kDefault_GrSLPrecision;
-    if (fProgramBuilder->ctxInfo().vendor() == kARM_GrGLVendor) {
+    if (fProgramBuilder->glslCaps()->forceHighPrecisionNDSTransform()) {
         precision = kHigh_GrSLPrecision;
     }
 
     // setup RT Uniform
     fProgramBuilder->fUniformHandles.fRTAdjustmentUni =
             fProgramBuilder->addUniform(GrGLProgramBuilder::kVertex_Visibility,
                                         kVec4f_GrSLType, precision,
                                         fProgramBuilder->rtAdjustment(),
                                         &fRtAdjustName);
     if (this->getProgramBuilder()->desc().header().fSnapVerticesToPixelCenters) {
@@ skipping 29 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() = GrGLGetGLSLVersionDecl(fProgramBuilder->ctxInfo());
+    this->versionDecl() = fProgramBuilder->glslCaps()->versionDeclString();
     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 GrGLSLShaderVar& 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;
 }