Revert of Replace all occurrences of RELEASE_ASSERT in wtf with CHECK.

third_party/WebKit/Source/wtf/text/TextCodecUTF16.cpp

 /*
  * Copyright (C) 2004, 2006, 2008, 2010 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 148 matching lines @@
             bytes[i * 2 + 1] = static_cast<char>(c);
         }
     }
 
     return result;
 }
 
 CString TextCodecUTF16::encode(const LChar* characters, size_t length, UnencodableHandling)
 {
     // In the LChar case, we do actually need to perform this check in release.  :)
-    CHECK_LE(length, numeric_limits<size_t>::max() / 2);
+    RELEASE_ASSERT(length <= numeric_limits<size_t>::max() / 2);
 
     char* bytes;
     CString result = CString::newUninitialized(length * 2, bytes);
 
     if (m_littleEndian) {
         for (size_t i = 0; i < length; ++i) {
             bytes[i * 2] = characters[i];
             bytes[i * 2 + 1] = 0;
         }
     } else {
         for (size_t i = 0; i < length; ++i) {
             bytes[i * 2] = 0;
             bytes[i * 2 + 1] = characters[i];
         }
     }
 
     return result;
 }
 
 } // namespace WTF