Move eintr_wrapper.h from base to base/posix

base/files/dir_reader_linux.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 BASE_FILES_DIR_READER_LINUX_H_
 #define BASE_FILES_DIR_READER_LINUX_H_
 
 #include <errno.h>
 #include <fcntl.h>
 #include <stdint.h>
 #include <sys/syscall.h>
 #include <unistd.h>
 
 #include "base/logging.h"
-#include "base/eintr_wrapper.h"
+#include "base/posix/eintr_wrapper.h"
 
 // See the comments in dir_reader_posix.h about this.
 
 namespace base {
 
 struct linux_dirent {
   uint64_t        d_ino;
   int64_t         d_off;
   unsigned short  d_reclen;
   unsigned char   d_type;
@@ skipping 63 matching lines @@
   const int fd_;
   unsigned char buf_[512];
   size_t offset_, size_;
 
   DISALLOW_COPY_AND_ASSIGN(DirReaderLinux);
 };
 
 }  // namespace base
 
 #endif // BASE_FILES_DIR_READER_LINUX_H_