Use copies of canned browsing data helpers to populate the cookies tree model.

chrome/browser/browsing_data_local_storage_helper.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/browsing_data_local_storage_helper.h"
 
 #include "base/file_util.h"
 #include "base/message_loop.h"
 #include "base/string_util.h"
 #include "base/utf_string_conversions.h"
@@ skipping 129 matching lines @@
 
 void BrowsingDataLocalStorageHelper::DeleteLocalStorageFileInWebKitThread(
     const FilePath& file_path) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::WEBKIT));
   profile_->GetWebKitContext()->dom_storage_context()->DeleteLocalStorageFile(
       file_path);
 }
 
 CannedBrowsingDataLocalStorageHelper::CannedBrowsingDataLocalStorageHelper(
     Profile* profile)
-    : BrowsingDataLocalStorageHelper(profile) {
+    : BrowsingDataLocalStorageHelper(profile),
+      profile_(profile) {
+}
+
+CannedBrowsingDataLocalStorageHelper*
+CannedBrowsingDataLocalStorageHelper::Clone() {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  CannedBrowsingDataLocalStorageHelper* clone =
+      new CannedBrowsingDataLocalStorageHelper(profile_);
+
+  base::AutoLock auto_lock(lock_);
+  clone->pending_local_storage_info_ = pending_local_storage_info_;
+  clone->local_storage_info_ = local_storage_info_;
+  return clone;
 }
 
 void CannedBrowsingDataLocalStorageHelper::AddLocalStorage(
     const GURL& origin) {
   base::AutoLock auto_lock(lock_);
   pending_local_storage_info_.push_back(origin);
 }
 
 void CannedBrowsingDataLocalStorageHelper::Reset() {
   base::AutoLock auto_lock(lock_);
@@ skipping 55 matching lines @@
         0,
         base::Time()));
   }
   pending_local_storage_info_.clear();
 
   BrowserThread::PostTask(
       BrowserThread::UI, FROM_HERE,
       NewRunnableMethod(
           this, &CannedBrowsingDataLocalStorageHelper::NotifyInUIThread));
 }