Remove stl_util's STLDeleteContainerPairSecondPointers.

chrome/browser/content_settings/local_shared_objects_container.cc

Index: chrome/browser/content_settings/local_shared_objects_container.cc
diff --git a/chrome/browser/content_settings/local_shared_objects_container.cc b/chrome/browser/content_settings/local_shared_objects_container.cc
index 2115b649e437760dad130e31b556a2e5bb2e4131..a49f7248e1936349599d2708758dcf3118c75b34 100644
--- a/chrome/browser/content_settings/local_shared_objects_container.cc
+++ b/chrome/browser/content_settings/local_shared_objects_container.cc
@@ -86,13 +86,10 @@ size_t LocalSharedObjectsContainer::GetObjectCountForDomain(
   for (OriginCookieSetMap::const_iterator it = origin_cookies_set_map.begin();
        it != origin_cookies_set_map.end();
        ++it) {
-    const canonical_cookie::CookieHashSet* cookie_list = it->second;
-    for (canonical_cookie::CookieHashSet::const_iterator cookie =
-             cookie_list->begin();
-         cookie != cookie_list->end();
-         ++cookie) {
+    const canonical_cookie::CookieHashSet* cookie_list = it->second.get();
+    for (const auto& cookie : *cookie_list) {
       // Strip leading '.'s.
-      std::string cookie_domain = cookie->Domain();
+      std::string cookie_domain = cookie.Domain();
       if (cookie_domain[0] == '.')
         cookie_domain = cookie_domain.substr(1);
       // The |domain_url| is only created in order to use the