gpu: Add CHROMIUM_gpu_memory_buffer_image extension.

gpu/command_buffer/client/gles2_interface_stub_impl_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 719 matching lines @@
                                                GLenum /* internalformat */,
                                                GLenum /* usage */) {
   return 0;
 }
 void GLES2InterfaceStub::DestroyImageCHROMIUM(GLuint /* image_id */) {
 }
 void GLES2InterfaceStub::GetImageParameterivCHROMIUM(GLuint /* image_id */,
                                                      GLenum /* pname */,
                                                      GLint* /* params */) {
 }
+GLuint GLES2InterfaceStub::CreateGpuMemoryBufferImageCHROMIUM(
+    GLsizei /* width */,
+    GLsizei /* height */,
+    GLenum /* internalformat */,
+    GLenum /* usage */) {
+  return 0;
+}
 void GLES2InterfaceStub::GetTranslatedShaderSourceANGLE(GLuint /* shader */,
                                                         GLsizei /* bufsize */,
                                                         GLsizei* /* length */,
                                                         char* /* source */) {
 }
 void GLES2InterfaceStub::PostSubBufferCHROMIUM(GLint /* x */,
                                                GLint /* y */,
                                                GLint /* width */,
                                                GLint /* height */) {
 }
@@ skipping 110 matching lines @@
     GLfloat /* uv_y */,
     GLfloat /* uv_width */,
     GLfloat /* uv_height */) {
 }
 void GLES2InterfaceStub::MatrixLoadfCHROMIUM(GLenum /* matrixMode */,
                                              const GLfloat* /* m */) {
 }
 void GLES2InterfaceStub::MatrixLoadIdentityCHROMIUM(GLenum /* matrixMode */) {
 }
 #endif  // GPU_COMMAND_BUFFER_CLIENT_GLES2_INTERFACE_STUB_IMPL_AUTOGEN_H_