WTF::notFound looks too much like a local variable.

Source/core/html/track/TextTrackRegion.cpp

 /*
  * Copyright (C) 2013 Google 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 253 matching lines @@
     DEFINE_STATIC_LOCAL(const AtomicString, scrollUpValueKeyword, ("up", AtomicString::ConstructFromLiteral));
 
     bool isValidSetting;
     String numberAsString;
     int number;
     unsigned position;
     FloatPoint anchorPosition;
 
     switch (setting) {
     case Id:
-        if (value.find("-->") == notFound)
+        if (value.find("-->") == kNotFound)
             m_id = value;
         break;
     case Width:
         number = WebVTTParser::parseFloatPercentageValue(value, isValidSetting);
         if (isValidSetting)
             m_width = number;
         else
             LOG(Media, "TextTrackRegion::parseSettingValue, invalid Width");
         break;
     case Height:
@@ skipping 30 matching lines @@
     case None:
         break;
     }
 }
 
 void TextTrackRegion::parseSetting(const String& input, unsigned* position)
 {
     String setting = WebVTTParser::collectWord(input, position);
 
     size_t equalOffset = setting.find('=', 1);
-    if (equalOffset == notFound || !equalOffset || equalOffset == setting.length() - 1)
+    if (equalOffset == kNotFound || !equalOffset || equalOffset == setting.length() - 1)
         return;
 
     RegionSetting name = getSettingFromString(setting.substring(0, equalOffset));
     String value = setting.substring(equalOffset + 1, setting.length() - 1);
 
     parseSettingValue(name, value);
 }
 
 const AtomicString& TextTrackRegion::textTrackCueContainerShadowPseudoId()
 {
@@ skipping 165 matching lines @@
 {
     LOG(Media, "TextTrackRegion::scrollTimerFired");
 
     stopTimer();
     displayLastTextTrackCueBox();
 }
 
 } // namespace WebCore
 
 #endif