Actually delete databases in CookiesTreeModel.

base/file_util_posix.cc

-// 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.
 
 #include "base/file_util.h"
 
 #include <dirent.h>
 #include <errno.h>
 #include <fcntl.h>
 #include <fnmatch.h>
 #include <libgen.h>
 #include <stdio.h>
 #include <string.h>
 #include <sys/errno.h>
 #include <sys/mman.h>
 #include <sys/stat.h>
+#include <sys/time.h>
 #include <sys/types.h>
 #include <time.h>
 #include <unistd.h>
 
 #if defined(OS_MACOSX)
 #include <AvailabilityMacros.h>
 #endif
 
 #include <fstream>
 
@@ skipping 424 matching lines @@
 bool GetFileInfo(const FilePath& file_path, FileInfo* results) {
   stat_wrapper_t file_info;
   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);
   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 234 matching lines @@
   length_ = 0;
   file_ = base::kInvalidPlatformFileValue;
 }
 
 bool HasFileBeenModifiedSince(const FileEnumerator::FindInfo& find_info,
                               const base::Time& cutoff_time) {
   return find_info.stat.st_mtime >= cutoff_time.ToTimeT();
 }
 
 } // namespace file_util