Expose GpuMemoryBufferId through glGetImageivCHROMIUM.

gpu/command_buffer/client/gles2_c_lib_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 1298 matching lines @@
   gles2::GetGLContext()->DestroyImageCHROMIUM(image_id);
 }
 GLuint GL_APIENTRY
 GLES2CreateGpuMemoryBufferImageCHROMIUM(GLsizei width,
                                         GLsizei height,
                                         GLenum internalformat,
                                         GLenum usage) {
   return gles2::GetGLContext()->CreateGpuMemoryBufferImageCHROMIUM(
       width, height, internalformat, usage);
 }
+GLint GL_APIENTRY GLES2GetImageivCHROMIUM(GLuint image_id, GLenum param) {
+  return gles2::GetGLContext()->GetImageivCHROMIUM(image_id, param);
+}
 void GL_APIENTRY GLES2GetTranslatedShaderSourceANGLE(GLuint shader,
                                                      GLsizei bufsize,
                                                      GLsizei* length,
                                                      char* source) {
   gles2::GetGLContext()->GetTranslatedShaderSourceANGLE(shader, bufsize, length,
                                                         source);
 }
 void GL_APIENTRY GLES2PostSubBufferCHROMIUM(GLint x,
                                             GLint y,
                                             GLint width,
@@ skipping 1365 matching lines @@
     {
         "glDestroyImageCHROMIUM",
         reinterpret_cast<GLES2FunctionPointer>(glDestroyImageCHROMIUM),
     },
     {
         "glCreateGpuMemoryBufferImageCHROMIUM",
         reinterpret_cast<GLES2FunctionPointer>(
             glCreateGpuMemoryBufferImageCHROMIUM),
     },
     {
+        "glGetImageivCHROMIUM",
+        reinterpret_cast<GLES2FunctionPointer>(glGetImageivCHROMIUM),
+    },
+    {
         "glGetTranslatedShaderSourceANGLE",
         reinterpret_cast<GLES2FunctionPointer>(
             glGetTranslatedShaderSourceANGLE),
     },
     {
         "glPostSubBufferCHROMIUM",
         reinterpret_cast<GLES2FunctionPointer>(glPostSubBufferCHROMIUM),
     },
     {
         "glTexImageIOSurface2DCHROMIUM",
@@ skipping 262 matching lines @@
         reinterpret_cast<GLES2FunctionPointer>(
             glUniformMatrix4fvStreamTextureMatrixCHROMIUM),
     },
     {
         NULL, NULL,
     },
 };
 
 }  // namespace gles2
 #endif  // GPU_COMMAND_BUFFER_CLIENT_GLES2_C_LIB_AUTOGEN_H_