Reverting due to compile failure on multiple bots.

chrome/browser/extensions/extension_clear_api_constants.cc

 // Copyright (c) 2011 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/extensions/extension_clear_api_constants.h"
 
 namespace extension_clear_api_constants {
 
 // Keys.
 const char kCacheKey[] = "cache";
 const char kCookiesKey[] = "cookies";
 const char kDownloadsKey[] = "downloads";
 const char kFormDataKey[] = "formData";
 const char kHistoryKey[] = "history";
 const char kPasswordsKey[] = "passwords";
 
 // Timeframe "enum" values.
 const char kHourEnum[] = "last_hour";
 const char kDayEnum[] = "last_day";
 const char kWeekEnum[] = "last_week";
 const char kMonthEnum[] = "last_month";
 const char kEverythingEnum[] = "everything";
 
 // Errors!
 const char kOneAtATimeError[] = "Only one 'clear' API call can run at a time.";
 
 }  // namespace extension_clear_api_constants