AppCaches which belong to hosted apps are not protected from deletion

chrome/browser/profiles/profile.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/profiles/profile.h"
 
 #include <string>
 
 #include "base/command_line.h"
 #include "base/compiler_specific.h"
@@ skipping 743 matching lines @@
         BrowserThread::GetMessageLoopProxyForThread(BrowserThread::WEBKIT));
     appcache_service_ = new ChromeAppCacheService(quota_manager_->proxy());
     BrowserThread::PostTask(
         BrowserThread::IO, FROM_HERE,
         NewRunnableMethod(
             appcache_service_.get(),
             &ChromeAppCacheService::InitializeOnIOThread,
             IsOffTheRecord()
                 ? FilePath() : GetPath().Append(chrome::kAppCacheDirname),
             &GetResourceContext(),
-            make_scoped_refptr(GetExtensionSpecialStoragePolicy()),
-            false));
+            make_scoped_refptr(GetExtensionSpecialStoragePolicy())));
   }
 
   NotificationRegistrar registrar_;
 
   // The real underlying profile.
   Profile* profile_;
 
   // Weak pointer owned by |profile_|.
   PrefService* prefs_;
 
@@ skipping 78 matching lines @@
 };
 #endif
 
 Profile* Profile::CreateOffTheRecordProfile() {
 #if defined(OS_CHROMEOS)
   if (Profile::IsGuestSession())
     return new GuestSessionProfile(this);
 #endif
   return new OffTheRecordProfileImpl(this);
 }