Remove the command buffer method glGetImageivCHROMIUM.

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 637 matching lines @@
     {
         0x78FA, "GL_RGB_YCRCB_420_CHROMIUM",
     },
     {
         0x78FB, "GL_RGB_YCBCR_422_CHROMIUM",
     },
     {
         0x78FC, "GL_RGB_YCBCR_420V_CHROMIUM",
     },
     {
-        0x78FD, "GL_GPU_MEMORY_BUFFER_ID",
-    },
-    {
         0x8, "GL_CA_LAYER_EDGE_TOP_CHROMIUM",
     },
     {
         0x80000000, "GL_MULTISAMPLE_BUFFER_BIT7_QCOM",
     },
     {
         0x8001, "GL_CONSTANT_COLOR",
     },
     {
         0x8002, "GL_ONE_MINUS_CONSTANT_COLOR",
@@ skipping 4339 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_