Migrate WTF::HashMap::remove() to ::erase()

third_party/WebKit/Source/core/page/NetworkStateNotifier.cpp

 /*
  * Copyright (C) 2008 Apple Inc. All Rights Reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 187 matching lines @@
 
   // If any observers were removed during the iteration they will have
   // 0 values, clean them up.
   for (size_t i = 0; i < list->zeroedObservers.size(); ++i)
     list->observers.remove(list->zeroedObservers[i]);
 
   list->zeroedObservers.clear();
 
   if (list->observers.isEmpty()) {
     MutexLocker locker(m_mutex);
-    m_observers.remove(context);  // deletes list
+    m_observers.erase(context);  // deletes list
   }
 }
 
 }  // namespace blink