Add GL_EXT_multisampled_render_to_texture support to command buffer.

gpu/command_buffer/client/gles2_cmd_helper_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!
 
 #ifndef GPU_COMMAND_BUFFER_CLIENT_GLES2_CMD_HELPER_AUTOGEN_H_
 #define GPU_COMMAND_BUFFER_CLIENT_GLES2_CMD_HELPER_AUTOGEN_H_
@@ skipping 1559 matching lines @@
   void RenderbufferStorageMultisampleEXT(
       GLenum target, GLsizei samples, GLenum internalformat, GLsizei width,
       GLsizei height) {
     gles2::cmds::RenderbufferStorageMultisampleEXT* c =
         GetCmdSpace<gles2::cmds::RenderbufferStorageMultisampleEXT>();
     if (c) {
       c->Init(target, samples, internalformat, width, height);
     }
   }
 
+  void FramebufferTexture2DMultisampleEXT(
+      GLenum target, GLenum attachment, GLenum textarget, GLuint texture,
+      GLint level, GLsizei samples) {
+    gles2::cmds::FramebufferTexture2DMultisampleEXT* c =
+        GetCmdSpace<gles2::cmds::FramebufferTexture2DMultisampleEXT>();
+    if (c) {
+      c->Init(target, attachment, textarget, texture, level, samples);
+    }
+  }
+
   void TexStorage2DEXT(
       GLenum target, GLsizei levels, GLenum internalFormat, GLsizei width,
       GLsizei height) {
     gles2::cmds::TexStorage2DEXT* c =
         GetCmdSpace<gles2::cmds::TexStorage2DEXT>();
     if (c) {
       c->Init(target, levels, internalFormat, width, height);
     }
   }
 
@@ skipping 505 matching lines @@
     gles2::cmds::DrawBuffersEXTImmediate* c =
         GetImmediateCmdSpaceTotalSize<gles2::cmds::DrawBuffersEXTImmediate>(
             size);
     if (c) {
       c->Init(count, bufs);
     }
   }
 
 #endif  // GPU_COMMAND_BUFFER_CLIENT_GLES2_CMD_HELPER_AUTOGEN_H_