Remove PrefService::ScheduleSavePersistentPrefs and SavePersistentPrefs.

chrome/browser/content_settings/content_settings_pref_provider.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/content_settings/content_settings_pref_provider.h"
 
 #include <map>
 #include <string>
 #include <utility>
 #include <vector>
@@ skipping 211 matching lines @@
     }
   }
 
   // Update the content settings preference.
   if (!is_incognito_) {
     UpdatePref(primary_pattern,
                secondary_pattern,
                content_type,
                resource_identifier,
                setting);
-    prefs_->ScheduleSavePersistentPrefs();
   }
 
   NotifyObservers(
       primary_pattern, secondary_pattern, content_type, resource_identifier);
 }
 
 void PrefProvider::ClearAllContentSettingsRules(
     ContentSettingsType content_type) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   DCHECK(prefs_);
@@ skipping 20 matching lines @@
               entry->first.resource_identifier,
               CONTENT_SETTING_DEFAULT);
         }
         // Delete current |entry| and set |entry| to the next value map entry.
         entry = map_to_modify->erase(entry);
       } else {
         ++entry;
       }
     }
   }
-  prefs_->ScheduleSavePersistentPrefs();
   NotifyObservers(ContentSettingsPattern(),
                   ContentSettingsPattern(),
                   content_type,
                   std::string());
 }
 
 void PrefProvider::Observe(
     int type,
     const NotificationSource& source,
     const NotificationDetails& details) {
@@ skipping 15 matching lines @@
       } else if (*name == prefs::kGeolocationContentSettings) {
         MigrateObsoleteGeolocationPref();
       } else if (*name == prefs::kDesktopNotificationAllowedOrigins ||
                  *name == prefs::kDesktopNotificationDeniedOrigins) {
         MigrateObsoleteNotificationsPrefs();
       } else {
         NOTREACHED() << "Unexpected preference observed";
         return;
       }
     }
-    prefs_->ScheduleSavePersistentPrefs();
     ReadContentSettingsFromPref(true);
 
     NotifyObservers(ContentSettingsPattern(),
                     ContentSettingsPattern(),
                     CONTENT_SETTINGS_TYPE_DEFAULT,
                     std::string());
   } else {
     NOTREACHED() << "Unexpected notification";
   }
 }
@@ skipping 746 matching lines @@
     if (settings_dictionary->GetInteger(
             GetTypeName(CONTENT_SETTINGS_TYPE_GEOLOCATION), &setting_value)) {
       UpdateObsoleteGeolocationPref(pattern_pair.first,
                                     pattern_pair.second,
                                     ContentSetting(setting_value));
     }
   }
 }
 
 }  // namespace content_settings