[webcrypto] Refactor some of the algorithm parameter names.

Source/modules/crypto/AesCtrParams.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 28 matching lines @@
 {
     if (!m_counter) {
         const blink::WebVector<unsigned char>& counter = m_algorithm.aesCtrParams()->counter();
         m_counter = Uint8Array::create(counter.data(), counter.size());
     }
     return m_counter.get();
 }
 
 unsigned char AesCtrParams::length()
 {
-    return m_algorithm.aesCtrParams()->length();
+    return m_algorithm.aesCtrParams()->lengthBits();
 }
 
 AesCtrParams::AesCtrParams(const blink::WebCryptoAlgorithm& algorithm)
     : Algorithm(algorithm)
 {
     ASSERT(algorithm.aesCtrParams());
     ScriptWrappable::init(this);
 }
 
 } // namespace WebCore