[webcrypto] Replace KeyAlgorithm interfaces with an Object.

Source/modules/crypto/HmacKeyAlgorithm.cpp

Index: Source/modules/crypto/HmacKeyAlgorithm.cpp
diff --git a/Source/modules/crypto/HmacKeyAlgorithm.cpp b/Source/modules/crypto/HmacKeyAlgorithm.cpp
deleted file mode 100644
index 1d750cb5dba86febc3e072426357c55f85f1c7f1..0000000000000000000000000000000000000000
--- a/Source/modules/crypto/HmacKeyAlgorithm.cpp
+++ /dev/null
@@ -1,68 +0,0 @@
-/*
- * Copyright (C) 2014 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
- * copyright notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- *     * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * 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 "modules/crypto/HmacKeyAlgorithm.h"
-
-#include "modules/crypto/NormalizeAlgorithm.h"
-#include "wtf/text/WTFString.h"
-
-namespace WebCore {
-
-HmacKeyAlgorithm* HmacKeyAlgorithm::create(const blink::WebCryptoKeyAlgorithm& algorithm)
-{
-    return new HmacKeyAlgorithm(algorithm);
-}
-
-KeyAlgorithm* HmacKeyAlgorithm::hash()
-{
-    if (!m_hash)
-        m_hash = KeyAlgorithm::createHash(m_algorithm.hmacParams()->hash());
-    return m_hash.get();
-}
-
-unsigned HmacKeyAlgorithm::length()
-{
-    return m_algorithm.hmacParams()->lengthBits();
-}
-
-void HmacKeyAlgorithm::trace(Visitor* visitor)
-{
-    visitor->trace(m_hash);
-    KeyAlgorithm::trace(visitor);
-}
-
-HmacKeyAlgorithm::HmacKeyAlgorithm(const blink::WebCryptoKeyAlgorithm& algorithm)
-    : KeyAlgorithm(algorithm)
-{
-    ScriptWrappable::init(this);
-}
-
-} // namespace WebCore