NaCl: Remove use of nacl::DescWrapper from nacl_ipc_adapter.cc

chrome/nacl/nacl_ipc_adapter.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.
 
 #ifndef CHROME_NACL_NACL_IPC_ADAPTER_H_
 #define CHROME_NACL_NACL_IPC_ADAPTER_H_
 
 #include <map>
 #include <queue>
 #include <string>
@@ skipping 12 matching lines @@
 
 struct NaClDesc;
 struct NaClImcTypedMsgHdr;
 struct PP_Size;
 
 namespace IPC {
 class Channel;
 struct ChannelHandle;
 }
 
-namespace nacl {
-class DescWrapper;
-}
-
 namespace ppapi {
 class HostResource;
 }
 
 // Adapts a Chrome IPC channel to an IPC channel that we expose to Native
 // Client. This provides a mapping in both directions, so when IPC messages
 // come in from another process, we rewrite them and allow them to be received
 // via a recvmsg-like interface in the NaCl code. When NaCl code calls sendmsg,
 // we implement that as sending IPC messages on the channel.
 //
@@ skipping 135 matching lines @@
   // To be accessed inside of lock_ only.
   LockedData locked_data_;
 
   // To be accessed on the I/O thread (via task runner) only.
   IOThreadData io_thread_data_;
 
   DISALLOW_COPY_AND_ASSIGN(NaClIPCAdapter);
 };
 
 #endif  // CHROME_NACL_NACL_IPC_ADAPTER_H_