Remove last usage functions from HostContentSettingsMap

chrome/browser/permissions/permission_context_base.cc

 // Copyright 2014 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/permissions/permission_context_base.h"
 
 #include "base/logging.h"
 #include "base/prefs/pref_service.h"
 #include "chrome/browser/content_settings/host_content_settings_map_factory.h"
 #include "chrome/browser/permissions/permission_context_uma_util.h"
@@ skipping 135 matching lines @@
 
   if (IsRestrictedToSecureOrigins() &&
       !content::IsOriginSecure(requesting_origin)) {
     NotifyPermissionSet(id, requesting_origin, embedding_origin, callback,
                         false /* persist */, CONTENT_SETTING_BLOCK);
     return;
   }
 
   ContentSetting content_setting =
       HostContentSettingsMapFactory::GetForProfile(profile_)
-          ->GetContentSettingAndMaybeUpdateLastUsage(
+          ->GetContentSetting(
               requesting_origin, embedding_origin, permission_type_,
               std::string());
 
   if (content_setting == CONTENT_SETTING_ALLOW ||
       content_setting == CONTENT_SETTING_BLOCK) {
     NotifyPermissionSet(id, requesting_origin, embedding_origin, callback,
                         false /* persist */, content_setting);
     return;
   }
 
@@ skipping 119 matching lines @@
       permission_type_, std::string(), content_setting);
 }
 
 bool PermissionContextBase::IsPermissionKillSwitchOn() const {
   const std::string param =
       variations::GetVariationParamValue(kPermissionsKillSwitchFieldStudy,
           PermissionUtil::GetPermissionString(permission_type_));
 
   return param == kPermissionsKillSwitchBlockedValue;
 }