Eliminate the archived history database and clean up related code.

chrome/browser/history/history_notifications.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/history/history_notifications.h"
 
 namespace history {
 
 URLVisitedDetails::URLVisitedDetails()
     : transition(content::PAGE_TRANSITION_LINK) {}
 
 URLVisitedDetails::~URLVisitedDetails() {}
 
 URLsModifiedDetails::URLsModifiedDetails() {}
 
 URLsModifiedDetails::~URLsModifiedDetails() {}
 
 URLsDeletedDetails::URLsDeletedDetails()
     : all_history(false),
-      archived(false) {
+      expired(false) {
 }
 
 URLsDeletedDetails::~URLsDeletedDetails() {}
 
 KeywordSearchUpdatedDetails::KeywordSearchUpdatedDetails(
     const URLRow& url_row,
     TemplateURLID keyword_id,
     const base::string16& term)
     : url_row(url_row),
       keyword_id(keyword_id),
       term(term) {
 }
 
 KeywordSearchUpdatedDetails::~KeywordSearchUpdatedDetails() {}
 
 KeywordSearchDeletedDetails::KeywordSearchDeletedDetails(URLID url_row_id)
     : url_row_id(url_row_id) {
 }
 
 KeywordSearchDeletedDetails::~KeywordSearchDeletedDetails() {}
 
 }  // namespace history