Android IPC changes.

ipc/file_descriptor_set_posix.cc

 // Copyright (c) 2011 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 "ipc/file_descriptor_set_posix.h"
 
 #include <sys/types.h>
 #include <sys/stat.h>
+#include <unistd.h>
 
 #include "base/eintr_wrapper.h"
 #include "base/logging.h"
 
 FileDescriptorSet::FileDescriptorSet()
     : consumed_descriptor_highwater_(0) {
 }
 
 FileDescriptorSet::~FileDescriptorSet() {
   if (consumed_descriptor_highwater_ == descriptors_.size())
@@ skipping 108 matching lines @@
   DCHECK_EQ(consumed_descriptor_highwater_, 0u);
 
   descriptors_.reserve(count);
   for (unsigned i = 0; i < count; ++i) {
     struct base::FileDescriptor sd;
     sd.fd = buffer[i];
     sd.auto_close = true;
     descriptors_.push_back(sd);
   }
 }