Revert 269855 "Only commit cookie changes in prerenders after a ..."

trunk/src/net/cookies/canonical_cookie.cc

Index: trunk/src/net/cookies/canonical_cookie.cc
===================================================================
--- trunk/src/net/cookies/canonical_cookie.cc	(revision 269877)
+++ trunk/src/net/cookies/canonical_cookie.cc	(working copy)
@@ -394,20 +394,4 @@
       static_cast<int64>(creation_date_.ToTimeT()));
 }
 
-CanonicalCookie* CanonicalCookie::Duplicate() {
-  CanonicalCookie* cc = new CanonicalCookie();
-  cc->source_ = source_;
-  cc->name_ = name_;
-  cc->value_ = value_;
-  cc->domain_ = domain_;
-  cc->path_ = path_;
-  cc->creation_date_ = creation_date_;
-  cc->expiry_date_ = expiry_date_;
-  cc->last_access_date_ = last_access_date_;
-  cc->secure_ = secure_;
-  cc->httponly_ = httponly_;
-  cc->priority_ = priority_;
-  return cc;
-}
-
 }  // namespace net