WebCrypto: Remove support for multi-part operations.

Source/modules/crypto/SubtleCrypto.idl

Index: Source/modules/crypto/SubtleCrypto.idl
diff --git a/Source/modules/crypto/SubtleCrypto.idl b/Source/modules/crypto/SubtleCrypto.idl
index b283fe25c2b1e596f4576c6c00769bf455fdeeb0..fd58080f6e224fc458a5cc070df63875c039ec6f 100644
--- a/Source/modules/crypto/SubtleCrypto.idl
+++ b/Source/modules/crypto/SubtleCrypto.idl
@@ -31,11 +31,12 @@
 [
     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);