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

chrome/browser/tab_contents/tab_specific_content_settings.cc

Index: chrome/browser/tab_contents/tab_specific_content_settings.cc
diff --git a/chrome/browser/tab_contents/tab_specific_content_settings.cc b/chrome/browser/tab_contents/tab_specific_content_settings.cc
index cf94bba3d24fc42803cbf53709d34fa51fe200ac..c349afe1a3357988f9c25b6deafe2556a6f9c8a0 100644
--- a/chrome/browser/tab_contents/tab_specific_content_settings.cc
+++ b/chrome/browser/tab_contents/tab_specific_content_settings.cc
@@ -314,9 +314,9 @@ void TabSpecificContentSettings::LocalSharedObjectsContainer::Reset() {
 CookiesTreeModel*
 TabSpecificContentSettings::LocalSharedObjectsContainer::GetCookiesTreeModel() {
   return new CookiesTreeModel(cookies_,
-                              databases_,
-                              local_storages_,
-                              session_storages_,
-                              appcaches_,
-                              indexed_dbs_);
+                              databases_->Clone(),
+                              local_storages_->Clone(),
+                              session_storages_->Clone(),
+                              appcaches_->Clone(),
+                              indexed_dbs_->Clone());
 }