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 16 matching lines @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 // FIXME: |PromiseValue| should be replaced with |Promise|. http://crbug.com/266700
 typedef any PromiseValue;
 
 [
     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);
+    [RaisesException] PromiseValue encrypt(Dictionary algorithm, Key key, ArrayBufferView data);
+    [RaisesException] PromiseValue decrypt(Dictionary algorithm, Key key, ArrayBufferView data);
+    [RaisesException] PromiseValue sign(Dictionary algorithm, Key key, ArrayBufferView data);
+    [RaisesException, ImplementedAs=verifySignature] PromiseValue verify(Dictionary algorithm, Key key, ArrayBufferView signature, ArrayBufferView data);
+    [RaisesException] PromiseValue digest(Dictionary algorithm, ArrayBufferView data);
 
     [RaisesException] PromiseValue generateKey(Dictionary algorithm, boolean extractable, DOMString[] keyUsages);
     [RaisesException] PromiseValue importKey(DOMString format, ArrayBufferView keyData, Dictionary algorithm, boolean extractable, DOMString[] keyUsages);
 };