Add sampler related ES3 APIs to command buffer.

gpu/command_buffer/common/gles2_cmd_utils_implementation_autogen.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // This file is auto-generated from
 // gpu/command_buffer/build_gles2_cmd_buffer.py
 // It's formatted by clang-format using chromium coding style:
 //    clang-format -i -style=chromium filename
 // DO NOT EDIT!
 
@@ skipping 4920 matching lines @@
 std::string GLES2Util::GetStringResetStatus(uint32_t value) {
   static const EnumToString string_table[] = {
       {GL_GUILTY_CONTEXT_RESET_ARB, "GL_GUILTY_CONTEXT_RESET_ARB"},
       {GL_INNOCENT_CONTEXT_RESET_ARB, "GL_INNOCENT_CONTEXT_RESET_ARB"},
       {GL_UNKNOWN_CONTEXT_RESET_ARB, "GL_UNKNOWN_CONTEXT_RESET_ARB"},
   };
   return GLES2Util::GetQualifiedEnumString(string_table,
                                            arraysize(string_table), value);
 }
 
+std::string GLES2Util::GetStringSamplerParameter(uint32_t value) {
+  static const EnumToString string_table[] = {
+      {GL_TEXTURE_MAG_FILTER, "GL_TEXTURE_MAG_FILTER"},
+      {GL_TEXTURE_MIN_FILTER, "GL_TEXTURE_MIN_FILTER"},
+      {GL_TEXTURE_MIN_LOD, "GL_TEXTURE_MIN_LOD"},
+      {GL_TEXTURE_MAX_LOD, "GL_TEXTURE_MAX_LOD"},
+      {GL_TEXTURE_WRAP_S, "GL_TEXTURE_WRAP_S"},
+      {GL_TEXTURE_WRAP_T, "GL_TEXTURE_WRAP_T"},
+      {GL_TEXTURE_WRAP_R, "GL_TEXTURE_WRAP_R"},
+      {GL_TEXTURE_COMPARE_MODE, "GL_TEXTURE_COMPARE_MODE"},
+      {GL_TEXTURE_COMPARE_FUNC, "GL_TEXTURE_COMPARE_FUNC"},
+  };
+  return GLES2Util::GetQualifiedEnumString(string_table,
+                                           arraysize(string_table), value);
+}
+
 std::string GLES2Util::GetStringShaderBinaryFormat(uint32_t value) {
   return GLES2Util::GetQualifiedEnumString(NULL, 0, value);
 }
 
 std::string GLES2Util::GetStringShaderParameter(uint32_t value) {
   static const EnumToString string_table[] = {
       {GL_SHADER_TYPE, "GL_SHADER_TYPE"},
       {GL_DELETE_STATUS, "GL_DELETE_STATUS"},
       {GL_COMPILE_STATUS, "GL_COMPILE_STATUS"},
       {GL_INFO_LOG_LENGTH, "GL_INFO_LOG_LENGTH"},
@@ skipping 255 matching lines @@
 
 std::string GLES2Util::GetStringVertexPointer(uint32_t value) {
   static const EnumToString string_table[] = {
       {GL_VERTEX_ATTRIB_ARRAY_POINTER, "GL_VERTEX_ATTRIB_ARRAY_POINTER"},
   };
   return GLES2Util::GetQualifiedEnumString(string_table,
                                            arraysize(string_table), value);
 }
 
 #endif  // GPU_COMMAND_BUFFER_COMMON_GLES2_CMD_UTILS_IMPLEMENTATION_AUTOGEN_H_