Rename kES2_GrGLBinding to kES_GrGLBinding. Step 0 for supporting ES3.

src/gpu/gl/GrGLShaderBuilder.cpp

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "gl/GrGLShaderBuilder.h"
 #include "gl/GrGLProgram.h"
 #include "gl/GrGLUniformHandle.h"
@@ skipping 147 matching lines @@
         this->fsCodeAppend(";\n\n");
     }
 }
 
 bool GrGLShaderBuilder::enableFeature(GLSLFeature feature) {
     switch (feature) {
         case kStandardDerivatives_GLSLFeature:
             if (!fCtxInfo.caps()->shaderDerivativeSupport()) {
                 return false;
             }
-            if (kES2_GrGLBinding == fCtxInfo.binding()) {
+            if (kES_GrGLBinding == fCtxInfo.binding()) {
                 this->addFSFeature(1 << kStandardDerivatives_GLSLFeature,
                                    "GL_OES_standard_derivatives");
             }
             return true;
         default:
             GrCrash("Unexpected GLSLFeature requested.");
             return false;
     }
 }
 
@@ skipping 366 matching lines @@
     fFSFunctions.append(body);
     fFSFunctions.append("}\n\n");
 }
 
 namespace {
 
 inline void append_default_precision_qualifier(GrGLShaderVar::Precision p,
                                                GrGLBinding binding,
                                                SkString* str) {
     // Desktop GLSL has added precision qualifiers but they don't do anything.
-    if (kES2_GrGLBinding == binding) {
+    if (kES_GrGLBinding == binding) {
         switch (p) {
             case GrGLShaderVar::kHigh_Precision:
                 str->append("precision highp float;\n");
                 break;
             case GrGLShaderVar::kMedium_Precision:
                 str->append("precision mediump float;\n");
                 break;
             case GrGLShaderVar::kLow_Precision:
                 str->append("precision lowp float;\n");
                 break;
@@ skipping 154 matching lines @@
     for (const AttributePair* attrib = this->getEffectAttributes().begin();
          attrib != attribEnd;
          ++attrib) {
         if (attrib->fIndex == attributeIndex) {
             return &attrib->fName;
         }
     }
 
     return NULL;
 }