Replace more ObserverList with base::ObserverList.

chromeos/settings/timezone_settings.cc

 // Copyright 2013 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 "chromeos/settings/timezone_settings.h"
 
 #include <string>
 
 #include "base/bind.h"
 #include "base/files/file_path.h"
@@ skipping 265 matching lines @@
   // Returns |timezone| if it is an element of |timezones_|.
   // Otherwise, returns a timezone from |timezones_|, if such exists, that has
   // the same rule as the given |timezone|.
   // Otherwise, returns NULL.
   // Note multiple timezones with the same time zone rules may exist
   // e.g.
   //   US/Pacific == America/Los_Angeles
   const icu::TimeZone* GetKnownTimezoneOrNull(
       const icu::TimeZone& timezone) const;
 
-  ObserverList<Observer> observers_;
+  base::ObserverList<Observer> observers_;
   std::vector<icu::TimeZone*> timezones_;
   scoped_ptr<icu::TimeZone> timezone_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(TimezoneSettingsBaseImpl);
 };
 
 // The TimezoneSettings implementation used in production.
 class TimezoneSettingsImpl : public TimezoneSettingsBaseImpl {
  public:
@@ skipping 165 matching lines @@
 
 // static
 base::string16 TimezoneSettings::GetTimezoneID(const icu::TimeZone& timezone) {
   icu::UnicodeString id;
   timezone.getID(id);
   return base::string16(id.getBuffer(), id.length());
 }
 
 }  // namespace system
 }  // namespace chromeos