WebCrypto: Add framework for AlgorithmIdentifier normalization.

Source/modules/crypto/AesKeyGenParams.h

Index: Source/modules/crypto/AesKeyGenParams.h
diff --git a/Source/modules/crypto/WorkerCrypto.h b/Source/modules/crypto/AesKeyGenParams.h
similarity index 78%
copy from Source/modules/crypto/WorkerCrypto.h
copy to Source/modules/crypto/AesKeyGenParams.h
index 5bbb3f5d39eba918f40aab6f91439d3993547e81..ac29f170c1fe56fa973ae1306901ba60f368476a 100644
--- a/Source/modules/crypto/WorkerCrypto.h
+++ b/Source/modules/crypto/AesKeyGenParams.h
@@ -28,26 +28,26 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef WorkerCrypto_h
-#define WorkerCrypto_h
+#ifndef AesKeyGenParams_h
+#define AesKeyGenParams_h
 
-#include "bindings/v8/ScriptWrappable.h"
-#include "wtf/Forward.h"
-#include "wtf/PassRefPtr.h"
-#include "wtf/RefCounted.h"
+#include "modules/crypto/Algorithm.h"
+#include "public/platform/WebCryptoAlgorithm.h"
 
 namespace WebCore {
 
 typedef int ExceptionCode;
 
-class WorkerCrypto : public ScriptWrappable, public RefCounted<WorkerCrypto> {
+class AesKeyGenParams : public Algorithm {
 public:
-    static PassRefPtr<WorkerCrypto> create() { return adoptRef(new WorkerCrypto()); }
+    static PassRefPtr<AesKeyGenParams> create(const WebKit::WebCryptoAlgorithm& algorithm) { return adoptRef(new AesKeyGenParams(algorithm)); }
+
+    unsigned short length() const;
 
 private:
-    WorkerCrypto();
+    explicit AesKeyGenParams(const WebKit::WebCryptoAlgorithm&);
 };
 
-}
+} // namespace WebCore
 
 #endif