Some additions to support symlinks better on platforms that support them.

base/file_util.h

 // 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.
 
 // This file contains utility functions for dealing with the local
 // filesystem.
 
 #ifndef BASE_FILE_UTIL_H_
 #define BASE_FILE_UTIL_H_
 #pragma once
@@ skipping 161 matching lines @@
 // |contents| may be NULL, in which case this function is useful for its
 // side effect of priming the disk cache.
 // Useful for unit tests.
 bool ReadFileToString(const FilePath& path, std::string* contents);
 
 #if defined(OS_POSIX)
 // Read exactly |bytes| bytes from file descriptor |fd|, storing the result
 // in |buffer|. This function is protected against EINTR and partial reads.
 // Returns true iff |bytes| bytes have been successfuly read from |fd|.
 bool ReadFromFD(int fd, char* buffer, size_t bytes);
+
+// Creates a symbolic link at |symlink| pointing to |target|.  Returns
+// false on failure.
+bool CreateSymbolicLink(const FilePath& target, const FilePath& symlink);
+
+// Reads the given |symlink| and returns where it points to in |target|.
+// Returns false upon failure.
+bool ReadSymbolicLink(const FilePath& symlink, FilePath* target);
 #endif  // defined(OS_POSIX)
 
 #if defined(OS_WIN)
 // Resolve Windows shortcut (.LNK file)
 // This methods tries to resolve a shortcut .LNK file. If the |path| is valid
 // returns true and puts the target into the |path|, otherwise returns
 // false leaving the path as it is.
 bool ResolveShortcut(FilePath* path);
 
 // Create a Windows shortcut (.LNK file)
@@ skipping 424 matching lines @@
 bool GetFileSystemType(const FilePath& path, FileSystemType* type);
 #endif
 
 }  // namespace file_util
 
 // Deprecated functions have been moved to this separate header file,
 // which must be included last after all the above definitions.
 #include "base/file_util_deprecated.h"
 
 #endif  // BASE_FILE_UTIL_H_