run iwyu on base!

base/sync_socket_posix.cc

 // Copyright (c) 2009 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 "base/sync_socket.h"
-
-#include <errno.h>
 #include <limits.h>
-#include <stdio.h>
-#include <sys/types.h>
+#include <stddef.h>
+#include <sys/filio.h>
 #include <sys/ioctl.h>
 #include <sys/socket.h>
+#include <unistd.h>
 
 #include "base/file_util.h"
 #include "base/logging.h"
+#include "base/sync_socket.h"
+#include "build/build_config.h"
 
 
 namespace base {
 
 namespace {
 // To avoid users sending negative message lengths to Send/Receive
 // we clamp message lengths, which are size_t, to no more than INT_MAX.
 const size_t kMaxMessageLength = static_cast<size_t>(INT_MAX);
 
 static const SyncSocket::Handle kInvalidHandle = -1;
@@ skipping 75 matching lines @@
 size_t SyncSocket::Peek() {
   int number_chars;
   if (-1 == ioctl(handle_, FIONREAD, &number_chars)) {
     // If there is an error in ioctl, signal that the channel would block.
     return 0;
   }
   return (size_t) number_chars;
 }
 
 }  // namespace base