Port some things in browser/{download,history}, minor things in common....

chrome/browser/history/in_memory_history_backend.cc

 // Copyright (c) 2006-2008 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/in_memory_history_backend.h"
 
 #include "chrome/browser/browser_process.h"
-#include "chrome/browser/history/history_database.h"
 #include "chrome/browser/history/history_notifications.h"
 #include "chrome/browser/history/in_memory_database.h"
 #include "chrome/browser/profile.h"
 
 namespace history {
 
 // If a page becomes starred we use this id in place of the real starred id.
 // See note in OnURLsStarred.
 static const StarID kBogusStarredID = 0x0FFFFFFF;
 
@@ skipping 110 matching lines @@
     if (id) {
       // We typically won't have most of them since we only have a subset of
       // history, so ignore errors.
       db_->DeleteURLRow(id);
     }
   }
 }
 
 }  // namespace history