Revert NotImplemented() changes in r383029 and r383047.

third_party/WebKit/Source/platform/text/TextBreakIteratorICU.cpp

 /*
  * Copyright (C) 2006 Lars Knoll <lars@trolltech.com>
  * Copyright (C) 2007, 2011, 2012 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 64 matching lines @@
             }
         }
 
         ASSERT(!m_vendedIterators.contains(iterator));
         m_vendedIterators.set(iterator, locale);
         return iterator;
     }
 
     void put(icu::BreakIterator* iterator)
     {
-        DCHECK(m_vendedIterators.contains(iterator));
+        ASSERT_ARG(iterator, m_vendedIterators.contains(iterator));
 
         if (m_pool.size() == capacity) {
             delete(m_pool[0].second);
             m_pool.remove(0);
         }
 
         m_pool.append(Entry(m_vendedIterators.take(iterator), iterator));
     }
 
 private:
@@ skipping 491 matching lines @@
         return 0;
     }
 
     utext_close(text);
 
     return iterator;
 }
 
 void releaseLineBreakIterator(TextBreakIterator* iterator)
 {
-    DCHECK(iterator);
+    ASSERT_ARG(iterator, iterator);
+
     LineBreakIteratorPool::sharedPool().put(iterator);
 }
 
 static TextBreakIterator* nonSharedCharacterBreakIterator;
 
 static inline bool compareAndSwapNonSharedCharacterBreakIterator(TextBreakIterator* expected, TextBreakIterator* newValue)
 {
     DEFINE_STATIC_LOCAL(Mutex, nonSharedCharacterBreakIteratorMutex, ());
     MutexLocker locker(nonSharedCharacterBreakIteratorMutex);
     if (nonSharedCharacterBreakIterator != expected)
@@ skipping 227 matching lines @@
         "$Tel1 $TelV $Tel0;"               // Telugu Virama (backward)
         "$Kan1 $KanV $Kan0;"               // Kannada Virama (backward)
         "$Mal1 $MalV $Mal0;"               // Malayalam Virama (backward)
         "!!safe_reverse;"
         "!!safe_forward;";
 
     return setUpIteratorWithRules(kRules, string, length);
 }
 
 } // namespace blink