Move path functions from file_util to FilePath object.

base/file_util_posix.cc

 // 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.
 
 #include "base/file_util.h"
 
 #include <dirent.h>
 #include <errno.h>
 #include <fcntl.h>
 #include <fnmatch.h>
@@ skipping 132 matching lines @@
   return base::StringPrintf(".%s.XXXXXX", base::mac::BaseBundleID());
 #endif
 
 #if defined(GOOGLE_CHROME_BUILD)
   return std::string(".com.google.Chrome.XXXXXX");
 #else
   return std::string(".org.chromium.Chromium.XXXXXX");
 #endif
 }
 
-bool AbsolutePath(FilePath* path) {
-  base::ThreadRestrictions::AssertIOAllowed();  // For realpath().
-  char full_path[PATH_MAX];
-  if (realpath(path->value().c_str(), full_path) == NULL)
-    return false;
-  *path = FilePath(full_path);
-  return true;
-}
-
 int CountFilesCreatedAfter(const FilePath& path,
                            const base::Time& comparison_time) {
   base::ThreadRestrictions::AssertIOAllowed();
   int file_count = 0;
 
   DIR* dir = opendir(path.value().c_str());
   if (dir) {
 #if !defined(OS_LINUX) && !defined(OS_MACOSX) && !defined(OS_BSD) && \
     !defined(OS_SOLARIS) && !defined(OS_ANDROID)
   #error Port warning: depending on the definition of struct dirent, \
@@ skipping 919 matching lines @@
       kFileSystemRoot, path, kRootUid, allowed_group_ids);
 }
 #endif  // defined(OS_MACOSX) && !defined(OS_IOS)
 
 int GetMaximumPathComponentLength(const FilePath& path) {
   base::ThreadRestrictions::AssertIOAllowed();
   return pathconf(path.value().c_str(), _PC_NAME_MAX);
 }
 
 }  // namespace file_util