Run clang-modernize -use-nullptr over src/extensions/.

extensions/browser/event_router.cc

Index: extensions/browser/event_router.cc
diff --git a/extensions/browser/event_router.cc b/extensions/browser/event_router.cc
index d006d1e9a7588f049faf243e26c7097c71f47b25..b1393fb0838f6055e5e6b43ba7b363e00ccb7397 100644
--- a/extensions/browser/event_router.cc
+++ b/extensions/browser/event_router.cc
@@ -255,7 +255,7 @@ void EventRouter::OnListenerRemoved(const EventListener* listener) {
 void EventRouter::AddLazyEventListener(const std::string& event_name,
                                        const std::string& extension_id) {
   bool is_new = listeners_.AddListener(EventListener::ForExtension(
-      event_name, extension_id, NULL, scoped_ptr<DictionaryValue>()));
+      event_name, extension_id, nullptr, scoped_ptr<DictionaryValue>()));
 
   if (is_new) {
     std::set<std::string> events = GetRegisteredEvents(extension_id);
@@ -268,7 +268,7 @@ void EventRouter::AddLazyEventListener(const std::string& event_name,
 void EventRouter::RemoveLazyEventListener(const std::string& event_name,
                                           const std::string& extension_id) {
   scoped_ptr<EventListener> listener = EventListener::ForExtension(
-      event_name, extension_id, NULL, scoped_ptr<DictionaryValue>());
+      event_name, extension_id, nullptr, scoped_ptr<DictionaryValue>());
   bool did_exist = listeners_.RemoveListener(listener.get());
 
   if (did_exist) {
@@ -294,7 +294,7 @@ void EventRouter::AddFilteredEventListener(const std::string& event_name,
     bool added = listeners_.AddListener(EventListener::ForExtension(
         event_name,
         extension_id,
-        NULL,
+        nullptr,
         scoped_ptr<DictionaryValue>(filter.DeepCopy())));
 
     if (added)
@@ -356,7 +356,7 @@ bool EventRouter::HasEventListenerImpl(const ListenerMap& listener_map,
 std::set<std::string> EventRouter::GetRegisteredEvents(
     const std::string& extension_id) {
   std::set<std::string> events;
-  const ListValue* events_value = NULL;
+  const ListValue* events_value = nullptr;
 
   if (!extension_prefs_ ||
       !extension_prefs_->ReadPrefAsList(
@@ -392,7 +392,7 @@ void EventRouter::AddFilterToEvent(const std::string& event_name,
   if (!filtered_events)
     filtered_events = update.Create();
 
-  ListValue* filter_list = NULL;
+  ListValue* filter_list = nullptr;
   if (!filtered_events->GetList(event_name, &filter_list)) {
     filter_list = new ListValue;
     filtered_events->SetWithoutPathExpansion(event_name, filter_list);
@@ -407,17 +407,17 @@ void EventRouter::RemoveFilterFromEvent(const std::string& event_name,
   ExtensionPrefs::ScopedDictionaryUpdate update(
       extension_prefs_, extension_id, kFilteredEvents);
   DictionaryValue* filtered_events = update.Get();
-  ListValue* filter_list = NULL;
+  ListValue* filter_list = nullptr;
   if (!filtered_events ||
       !filtered_events->GetListWithoutPathExpansion(event_name, &filter_list)) {
     return;
   }
 
   for (size_t i = 0; i < filter_list->GetSize(); i++) {
-    DictionaryValue* filter = NULL;
+    DictionaryValue* filter = nullptr;
     CHECK(filter_list->GetDictionary(i, &filter));
     if (filter->Equals(filter)) {
-      filter_list->Remove(i, NULL);
+      filter_list->Remove(i, nullptr);
       break;
     }
   }
@@ -425,7 +425,7 @@ void EventRouter::RemoveFilterFromEvent(const std::string& event_name,
 
 const DictionaryValue* EventRouter::GetFilteredEvents(
     const std::string& extension_id) {
-  const DictionaryValue* events = NULL;
+  const DictionaryValue* events = nullptr;
   extension_prefs_->ReadPrefAsDictionary(
       extension_id, kFilteredEvents, &events);
   return events;
@@ -766,7 +766,7 @@ Event::Event(const std::string& event_name,
              scoped_ptr<base::ListValue> event_args)
     : event_name(event_name),
       event_args(event_args.Pass()),
-      restrict_to_browser_context(NULL),
+      restrict_to_browser_context(nullptr),
       user_gesture(EventRouter::USER_GESTURE_UNKNOWN) {
   DCHECK(this->event_args.get());
 }