[mojo-edk] Make the Mojo EDK compile under NaCl.

mojo/edk/system/channel_posix.cc

 // Copyright 2016 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 "mojo/edk/system/channel.h"
 
 #include <errno.h>
-#include <sys/uio.h>
+#include <sys/socket.h>
 
 #include <algorithm>
 #include <deque>
 #include <limits>
 #include <memory>
 
 #include "base/bind.h"
 #include "base/location.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/message_loop/message_loop.h"
 #include "base/synchronization/lock.h"
 #include "base/task_runner.h"
 #include "mojo/edk/embedder/platform_channel_utils_posix.h"
 #include "mojo/edk/embedder/platform_handle_vector.h"
 
+#if !defined(OS_NACL)
+#include <sys/uio.h>
+#endif
+
 namespace mojo {
 namespace edk {
 
 namespace {
 
 const size_t kMaxBatchReadCapacity = 256 * 1024;
 
 // A view over a Channel::Message object. The write queue uses these since
 // large messages may need to be sent in chunks.
 class MessageView {
@@ skipping 463 matching lines @@
 // static
 scoped_refptr<Channel> Channel::Create(
     Delegate* delegate,
     ScopedPlatformHandle platform_handle,
     scoped_refptr<base::TaskRunner> io_task_runner) {
   return new ChannelPosix(delegate, std::move(platform_handle), io_task_runner);
 }
 
 }  // namespace edk
 }  // namespace mojo