WebCrypto: Add framework for AlgorithmIdentifier normalization.

Source/modules/crypto/NormalizeAlgorithm.h

 /*
  * 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 10 matching lines @@
  * 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.
  */
 
-#ifndef WorkerCrypto_h
-#define WorkerCrypto_h
+#ifndef NormalizeAlgorithm_h
+#define NormalizeAlgorithm_h
 
-#include "bindings/v8/ScriptWrappable.h"
-#include "wtf/Forward.h"
-#include "wtf/PassRefPtr.h"
-#include "wtf/RefCounted.h"
+#include "wtf/Assertions.h"
+
+namespace WebKit { class WebCryptoAlgorithm; }
 
 namespace WebCore {
 
+class Dictionary;
+
 typedef int ExceptionCode;
 
-class WorkerCrypto : public ScriptWrappable, public RefCounted<WorkerCrypto> {
-public:
-    static PassRefPtr<WorkerCrypto> create() { return adoptRef(new WorkerCrypto()); }
-
-private:
-    WorkerCrypto();
+enum AlgorithmOperation {
+    Encrypt,
+    Decrypt,
+    Sign,
+    Verify,
+    Digest,
+    GenerateKey,
+    DeriveKey,
+    WrapKey,
+    UnwrapKey,
+    // <---- End of list
+    NumAlgorithmOperations,

[abarth-chromium, 2013/07/02 06:46:36]

NumAlgorithmOperations -> NumberOfAlgorithmOperations

Please use complete works in variable names.

[eroman, 2013/07/02 08:12:27]

Done.

 };
 
-}
+// Normalizes an algorithm identifier (dictionary) into a WebCryptoAlgorithm. If
+// normalization fails then returns false and sets |ec|.
+bool normalizeAlgorithm(const Dictionary& raw, AlgorithmOperation, WebKit::WebCryptoAlgorithm&, ExceptionCode&) WARN_UNUSED_RETURN;

[abarth-chromium, 2013/07/02 06:46:36]

raw -> You can omit this argument name.  The name doesn't add any information.

[eroman, 2013/07/02 08:12:27]

Done.

+
+} // namespace WebCore
 
 #endif