WebCrypto: Remove support for multi-part operations.

Source/modules/crypto/SubtleCrypto.idl

 /*
  * 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 13 matching lines @@
  * 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.
  */
 
 [
     NoInterfaceObject,
 ] interface SubtleCrypto {
-    [RaisesException] CryptoOperation encrypt(Dictionary algorithm, Key key);
-    [RaisesException] CryptoOperation decrypt(Dictionary algorithm, Key key);
-    [RaisesException] CryptoOperation sign(Dictionary algorithm, Key key);
-    [RaisesException, ImplementedAs=verifySignature] CryptoOperation verify(Dictionary algorithm, Key key, ArrayBufferView signature);
-    [RaisesException] CryptoOperation digest(Dictionary algorithm);
+    // These all return Promises.

[abarth-chromium, 2013/08/16 04:53:07]

If you look at other code that uses Promises, we're currently using a typedef in
the IDL.  That's better documentation than a comment until we fix this issue in
the IDL compiler.

[eroman, 2013/08/16 22:59:41]

Done.

Note that I couldn't find other IDL files which do that, just a bug reference to
266700.

+    [RaisesException] any encrypt(Dictionary algorithm, Key key, ArrayBufferView data);
+    [RaisesException] any decrypt(Dictionary algorithm, Key key, ArrayBufferView data);
+    [RaisesException] any sign(Dictionary algorithm, Key key, ArrayBufferView data);
+    [RaisesException, ImplementedAs=verifySignature] any verify(Dictionary algorithm, Key key, ArrayBufferView signature, ArrayBufferView data);
+    [RaisesException] any digest(Dictionary algorithm, ArrayBufferView data);
 
     [RaisesException] any generateKey(Dictionary algorithm, boolean extractable, DOMString[] keyUsages);
     [RaisesException] any importKey(DOMString format, ArrayBufferView keyData, Dictionary algorithm, boolean extractable, DOMString[] keyUsages);
 };