Add GL_EXT_multisampled_render_to_texture support to command buffer.

gpu/command_buffer/client/gles2_c_lib_autogen.h

 // Copyright (c) 2012 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
 // DO NOT EDIT!
 
 // These functions emulate GLES2 over command buffers.
 #ifndef GPU_COMMAND_BUFFER_CLIENT_GLES2_C_LIB_AUTOGEN_H_
@@ skipping 503 matching lines @@
     GLint dstY0, GLint dstX1, GLint dstY1, GLbitfield mask, GLenum filter) {
   gles2::GetGLContext()->BlitFramebufferEXT(
       srcX0, srcY0, srcX1, srcY1, dstX0, dstY0, dstX1, dstY1, mask, filter);
 }
 void GLES2RenderbufferStorageMultisampleEXT(
     GLenum target, GLsizei samples, GLenum internalformat, GLsizei width,
     GLsizei height) {
   gles2::GetGLContext()->RenderbufferStorageMultisampleEXT(
       target, samples, internalformat, width, height);
 }
+void GLES2FramebufferTexture2DMultisampleEXT(
+    GLenum target, GLenum attachment, GLenum textarget, GLuint texture,
+    GLint level, GLsizei samples) {
+  gles2::GetGLContext()->FramebufferTexture2DMultisampleEXT(
+      target, attachment, textarget, texture, level, samples);
+}
 void GLES2TexStorage2DEXT(
     GLenum target, GLsizei levels, GLenum internalFormat, GLsizei width,
     GLsizei height) {
   gles2::GetGLContext()->TexStorage2DEXT(
       target, levels, internalFormat, width, height);
 }
 void GLES2GenQueriesEXT(GLsizei n, GLuint* queries) {
   gles2::GetGLContext()->GenQueriesEXT(n, queries);
 }
 void GLES2DeleteQueriesEXT(GLsizei n, const GLuint* queries) {
@@ skipping 445 matching lines @@
   { "glVertexAttrib4f", reinterpret_cast<GLES2FunctionPointer>(
       glVertexAttrib4f), },
   { "glVertexAttrib4fv", reinterpret_cast<GLES2FunctionPointer>(
       glVertexAttrib4fv), },
   { "glVertexAttribPointer", reinterpret_cast<GLES2FunctionPointer>(
       glVertexAttribPointer), },
   { "glViewport", reinterpret_cast<GLES2FunctionPointer>(glViewport), },
   { "glBlitFramebufferEXT", reinterpret_cast<GLES2FunctionPointer>(
       glBlitFramebufferEXT), },
   { "glRenderbufferStorageMultisampleEXT", reinterpret_cast<GLES2FunctionPointer>(glRenderbufferStorageMultisampleEXT), },  // NOLINT
+  { "glFramebufferTexture2DMultisampleEXT", reinterpret_cast<GLES2FunctionPointer>(glFramebufferTexture2DMultisampleEXT), },  // NOLINT
   { "glTexStorage2DEXT", reinterpret_cast<GLES2FunctionPointer>(
       glTexStorage2DEXT), },
   { "glGenQueriesEXT", reinterpret_cast<GLES2FunctionPointer>(
       glGenQueriesEXT), },
   { "glDeleteQueriesEXT", reinterpret_cast<GLES2FunctionPointer>(
       glDeleteQueriesEXT), },
   { "glIsQueryEXT", reinterpret_cast<GLES2FunctionPointer>(glIsQueryEXT), },
   { "glBeginQueryEXT", reinterpret_cast<GLES2FunctionPointer>(
       glBeginQueryEXT), },
   { "glEndQueryEXT", reinterpret_cast<GLES2FunctionPointer>(glEndQueryEXT), },
@@ skipping 107 matching lines @@
   { "glWaitSyncPointCHROMIUM", reinterpret_cast<GLES2FunctionPointer>(
       glWaitSyncPointCHROMIUM), },
   { "glDrawBuffersEXT", reinterpret_cast<GLES2FunctionPointer>(
       glDrawBuffersEXT), },
   { NULL, NULL, },
 };
 
 }  // namespace gles2
 #endif  // GPU_COMMAND_BUFFER_CLIENT_GLES2_C_LIB_AUTOGEN_H_