Move PathIsWritable, DirectoryExists, ContentsEqual, and TextContentsEqual to the base namespace.

chrome/browser/performance_monitor/database.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 "chrome/browser/performance_monitor/database.h"
 
 #include "base/file_util.h"
 #include "base/files/file_path.h"
 #include "base/json/json_reader.h"
 #include "base/json/json_writer.h"
@@ skipping 73 matching lines @@
 }
 
 // Static
 scoped_ptr<Database> Database::Create(base::FilePath path) {
   CHECK(!content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
   if (path.empty()) {
     CHECK(PathService::Get(chrome::DIR_USER_DATA, &path));
     path = path.AppendASCII(kDbDir);
   }
   scoped_ptr<Database> database;
-  if (!file_util::DirectoryExists(path) && !file_util::CreateDirectory(path))
+  if (!base::DirectoryExists(path) && !file_util::CreateDirectory(path))
     return database.Pass();
   database.reset(new Database(path));
 
   // If the database did not initialize correctly, return a NULL scoped_ptr.
   if (!database->valid_)
     database.reset();
   return database.Pass();
 }
 
 bool Database::AddStateValue(const std::string& key, const std::string& value) {
@@ skipping 473 matching lines @@
     start_time_key_ = key_builder_->CreateActiveIntervalKey(current_time);
     end_time = start_time_key_;
   } else {
     end_time = key_builder_->CreateActiveIntervalKey(clock_->GetTime());
   }
   last_update_time_ = current_time;
   active_interval_db_->Put(write_options_, start_time_key_, end_time);
 }
 
 }  // namespace performance_monitor