Add GL_EXT_multisampled_render_to_texture support to command buffer.

gpu/command_buffer/service/gles2_cmd_decoder_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!
 
 // It is included by gles2_cmd_decoder.cc
 #ifndef GPU_COMMAND_BUFFER_SERVICE_GLES2_CMD_DECODER_AUTOGEN_H_
@@ skipping 2739 matching lines @@
   if (height < 0) {
     LOCAL_SET_GL_ERROR(
         GL_INVALID_VALUE, "glRenderbufferStorageMultisampleEXT", "height < 0");
     return error::kNoError;
   }
   DoRenderbufferStorageMultisample(
       target, samples, internalformat, width, height);
   return error::kNoError;
 }
 
+error::Error GLES2DecoderImpl::HandleFramebufferTexture2DMultisampleEXT(
+    uint32 immediate_data_size,
+    const gles2::cmds::FramebufferTexture2DMultisampleEXT& c) {
+  GLenum target = static_cast<GLenum>(c.target);
+  GLenum attachment = static_cast<GLenum>(c.attachment);
+  GLenum textarget = static_cast<GLenum>(c.textarget);
+  GLuint texture = c.texture;
+  GLint level = static_cast<GLint>(c.level);
+  GLsizei samples = static_cast<GLsizei>(c.samples);
+  if (!validators_->frame_buffer_target.IsValid(target)) {
+    LOCAL_SET_GL_ERROR_INVALID_ENUM("glFramebufferTexture2DMultisampleEXT", target, "target");  // NOLINT
+    return error::kNoError;
+  }
+  if (!validators_->attachment.IsValid(attachment)) {
+    LOCAL_SET_GL_ERROR_INVALID_ENUM("glFramebufferTexture2DMultisampleEXT", attachment, "attachment");  // NOLINT
+    return error::kNoError;
+  }
+  if (!validators_->texture_target.IsValid(textarget)) {
+    LOCAL_SET_GL_ERROR_INVALID_ENUM("glFramebufferTexture2DMultisampleEXT", textarget, "textarget");  // NOLINT
+    return error::kNoError;
+  }
+  if (!validators_->zero_only.IsValid(level)) {
+    LOCAL_SET_GL_ERROR(
+        GL_INVALID_VALUE, "glFramebufferTexture2DMultisampleEXT", "level GL_INVALID_VALUE");  // NOLINT
+    return error::kNoError;
+  }
+  if (samples < 0) {
+    LOCAL_SET_GL_ERROR(
+        GL_INVALID_VALUE, "glFramebufferTexture2DMultisampleEXT", "samples < 0");  // NOLINT
+    return error::kNoError;
+  }
+  DoFramebufferTexture2DMultisample(
+      target, attachment, textarget, texture, level, samples);
+  return error::kNoError;
+}
+
 error::Error GLES2DecoderImpl::HandleTexStorage2DEXT(
     uint32 immediate_data_size, const gles2::cmds::TexStorage2DEXT& c) {
   GLenum target = static_cast<GLenum>(c.target);
   GLsizei levels = static_cast<GLsizei>(c.levels);
   GLenum internalFormat = static_cast<GLenum>(c.internalFormat);
   GLsizei width = static_cast<GLsizei>(c.width);
   GLsizei height = static_cast<GLsizei>(c.height);
   if (!validators_->texture_target.IsValid(target)) {
     LOCAL_SET_GL_ERROR_INVALID_ENUM("glTexStorage2DEXT", target, "target");
     return error::kNoError;
@@ skipping 553 matching lines @@
         clear_state_dirty_ = true;
       }
       return false;
     default:
       NOTREACHED();
       return false;
   }
 }
 #endif  // GPU_COMMAND_BUFFER_SERVICE_GLES2_CMD_DECODER_AUTOGEN_H_