WebCrypto: Add framework for AlgorithmIdentifier normalization.

Source/modules/crypto/AesCbcParams.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 11 matching lines @@
  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "config.h"
-#include "core/html/ime/Composition.h"
+#include "modules/crypto/AesCbcParams.h"
 
-#include "core/dom/Node.h"
-#include "core/dom/Range.h"
+#include "public/platform/WebCryptoAlgorithmParams.h"
 
 namespace WebCore {
 
-Composition::~Composition()
+Uint8Array* AesCbcParams::iv()
 {
+    if (!m_iv) {
+        const WebKit::WebVector<unsigned char>& iv = m_algorithm.aesCbcParams()->iv();
+        m_iv = Uint8Array::create(iv.data(), iv.size());
+    }
+    return m_iv.get();
 }
 
-PassRefPtr<Composition> Composition::create(Node* text, Range* caret)
-{
-    return adoptRef(new Composition(text, caret));
-}
-
-Composition::Composition(Node* text, Range* caret)
-    : m_text(text)
-    , m_caret(caret)
+AesCbcParams::AesCbcParams(const WebKit::WebCryptoAlgorithm& algorithm)
+    : Algorithm(algorithm)
 {
     ScriptWrappable::init(this);
 }
 
 } // namespace WebCore