Actually delete databases in CookiesTreeModel.

base/file_util.h

-// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
+// 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_
 
 #include "build/build_config.h"
@@ skipping 313 matching lines @@
   base::Time last_modified;
 
   // Add additional fields here as needed.
 };
 
 // Returns information about the given file path.
 bool GetFileInfo(const FilePath& file_path, FileInfo* info);
 // Deprecated temporary compatibility function.
 bool GetFileInfo(const std::wstring& file_path, FileInfo* info);
 
+// Set the time of the last modification. Useful for unit tests.
+bool SetLastModifiedTime(const FilePath& file_path, base::Time last_modified);
+
 #if defined(OS_POSIX)
 // Store inode number of |path| in |inode|. Return true on success.
 bool GetInode(const FilePath& path, ino_t* inode);
 #endif
 
 // Wrapper for fopen-like calls. Returns non-NULL FILE* on success.
 FILE* OpenFile(const FilePath& filename, const char* mode);
 // Deprecated temporary compatibility functions.
 FILE* OpenFile(const std::string& filename, const char* mode);
 FILE* OpenFile(const std::wstring& filename, const char* mode);
@@ skipping 210 matching lines @@
     const FilePath& source_file_path,
     const FilePath& target_file_path);
 
 // Returns whether the file has been modified since a particular date.
 bool HasFileBeenModifiedSince(const FileEnumerator::FindInfo& find_info,
                               const base::Time& cutoff_time);
 
 }  // namespace file_util
 
 #endif  // BASE_FILE_UTIL_H_