Update net/ to use scoped_refptr<T>::get() rather than implicit "operator T*"

net/url_request/url_request_throttler_manager.cc

Index: net/url_request/url_request_throttler_manager.cc
diff --git a/net/url_request/url_request_throttler_manager.cc b/net/url_request/url_request_throttler_manager.cc
index fa04a00e040fc0db7f8b9737ea71d9aa5d84a40a..56bbe89595f584a8ec7f3e36618774ad5d4f85df 100644
--- a/net/url_request/url_request_throttler_manager.cc
+++ b/net/url_request/url_request_throttler_manager.cc
@@ -38,7 +38,7 @@ URLRequestThrottlerManager::~URLRequestThrottlerManager() {
   // entries, detach the entries' back-pointer to the manager.
   UrlEntryMap::iterator i = url_entries_.begin();
   while (i != url_entries_.end()) {
-    if (i->second != NULL) {
+    if (i->second.get() != NULL) {
       i->second->DetachManager();
     }
     ++i;