Create IPC channel to communicate with the renderer in NaClListener::OnStart().

ppapi/shared_impl/ppapi_nacl_channel_args.cc

Index: ppapi/shared_impl/ppapi_nacl_channel_args.cc
diff --git a/ppapi/shared_impl/ppapi_nacl_channel_args.cc b/ppapi/shared_impl/ppapi_nacl_channel_args.cc
deleted file mode 100644
index 670e4e762dc5d46ad349366c0f1e111e96ab1e8a..0000000000000000000000000000000000000000
--- a/ppapi/shared_impl/ppapi_nacl_channel_args.cc
+++ /dev/null
@@ -1,18 +0,0 @@
-// 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.
-
-#include "ppapi/shared_impl/ppapi_nacl_channel_args.h"
-
-namespace ppapi {
-
-// We must provide explicit definitions of these functions for builds on
-// Windows.
-PpapiNaClChannelArgs::PpapiNaClChannelArgs() : off_the_record(false),
-                                               supports_dev_channel(false) {
-}
-
-PpapiNaClChannelArgs::~PpapiNaClChannelArgs() {
-}
-
-}  // namespace ppapi