third_party/WebKit: fix typos found in comments

third_party/WebKit/Source/core/html/HTMLMediaElement.cpp

 /*
  * Copyright (C) 2007, 2008, 2009, 2010, 2011, 2012, 2013 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 2727 matching lines @@
         m_sentEndEvent = false;
     }
 
     updatePlayState();
 }
 
 void HTMLMediaElement::durationChanged()
 {
     WTF_LOG(Media, "HTMLMediaElement::durationChanged(%p)", this);
     // FIXME: Change WebMediaPlayer to convey the currentTime
-    // when the duration change occured. The current WebMediaPlayer
+    // when the duration change occurred. The current WebMediaPlayer
     // implementations always clamp currentTime() to duration()
     // so the requestSeek condition here is always false.
     durationChanged(duration(), currentTime() > duration());
 }
 
 void HTMLMediaElement::durationChanged(double duration, bool requestSeek)
 {
     WTF_LOG(Media, "HTMLMediaElement::durationChanged(%p, %f, %d)", this, duration, requestSeek);
 
     // Abort if duration unchanged.
@@ skipping 913 matching lines @@
     visitor->trace(m_client);
 }
 
 DEFINE_TRACE(HTMLMediaElement::AudioSourceProviderImpl)
 {
     visitor->trace(m_client);
 }
 #endif
 
 }