WebCrypto: Add framework for AlgorithmIdentifier normalization.

Source/modules/crypto/Algorithm.cpp

Index: Source/modules/crypto/Algorithm.cpp
diff --git a/Source/modules/crypto/WorkerCrypto.cpp b/Source/modules/crypto/Algorithm.cpp
similarity index 85%
copy from Source/modules/crypto/WorkerCrypto.cpp
copy to Source/modules/crypto/Algorithm.cpp
index d77d0978de73288917dc7bb1fd259245715e5ff4..c6a9b8e3b5296b68683bbf241b1745938bba2630 100644
--- a/Source/modules/crypto/WorkerCrypto.cpp
+++ b/Source/modules/crypto/Algorithm.cpp
@@ -29,13 +29,21 @@
  */
 
 #include "config.h"
-#include "modules/crypto/WorkerCrypto.h"
+#include "modules/crypto/Algorithm.h"
 
 namespace WebCore {
 
-WorkerCrypto::WorkerCrypto()
+Algorithm::Algorithm(const WebKit::WebCryptoAlgorithm& algorithm)
+    : m_algorithm(algorithm)
 {
     ScriptWrappable::init(this);
 }
 
+const String& Algorithm::name()
+{
+    if (m_name.isNull())
+        m_name = m_algorithm.algorithmName();
+    return m_name;
 }
+
+} // namespace WebCore