Refactored cookies persistent store clean-up on shutdown.

net/base/cookie_monster.cc

Index: net/base/cookie_monster.cc
diff --git a/net/base/cookie_monster.cc b/net/base/cookie_monster.cc
index fdfd77924e5cb72477a3233059c64d5d0f0e4333..1a987fe84ec823c37a84de46bd96f21e8ebec234 100644
--- a/net/base/cookie_monster.cc
+++ b/net/base/cookie_monster.cc
@@ -406,6 +406,11 @@ void CookieMonster::SetExpiryAndKeyScheme(ExpiryAndKeyScheme key_scheme) {
   expiry_and_key_scheme_ = key_scheme;
 }
 
+void CookieMonster::SetClearPersistentStoreOnExit(bool clear_local_store) {
+  if(store_)
+    store_->SetClearLocalStateOnExit(clear_local_store);
+}
+
 // The system resolution is not high enough, so we can have multiple
 // set cookies that result in the same system time.  When this happens, we
 // increment by one Time unit.  Let's hope computers don't get too fast.