Revert "Add a TouchFile function that operates on FilePaths + fixing a bug"

base/file_util_posix.cc

 // Copyright (c) 2010 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/file_util.h"
 
 #include <dirent.h>
 #include <errno.h>
 #include <fcntl.h>
 #include <fnmatch.h>
@@ skipping 468 matching lines @@
   if (CallStat(file_path.value().c_str(), &file_info) != 0)
     return false;
   results->is_directory = S_ISDIR(file_info.st_mode);
   results->size = file_info.st_size;
   results->last_modified = base::Time::FromTimeT(file_info.st_mtime);
   results->last_accessed = base::Time::FromTimeT(file_info.st_atime);
   results->creation_time = base::Time::FromTimeT(file_info.st_ctime);
   return true;
 }
 
+bool SetLastModifiedTime(const FilePath& file_path, base::Time last_modified) {
+  struct timeval times[2];
+  times[0] = last_modified.ToTimeVal();
+  times[1] = last_modified.ToTimeVal();
+  return (utimes(file_path.value().c_str(), times) == 0);
+}
+
 bool GetInode(const FilePath& path, ino_t* inode) {
   struct stat buffer;
   int result = stat(path.value().c_str(), &buffer);
   if (result < 0)
     return false;
 
   *inode = buffer.st_ino;
   return true;
 }
 
@@ skipping 329 matching lines @@
   if (HANDLE_EINTR(close(infile)) < 0)
     result = false;
   if (HANDLE_EINTR(close(outfile)) < 0)
     result = false;
 
   return result;
 }
 #endif  // defined(OS_MACOSX)
 
 } // namespace file_util