bug 170585, Scriptable streams are broken; r=darinf, sr=dougt

update to readdata caller

caps/src/nsJSPrincipals.cpp

@@ -125,7 +125,7 @@ nsTranscodeJSPrincipals(JSXDRState *xdr, JSPrincipals **jsprinp)
             if (NS_SUCCEEDED(rv)) {
                 char *data = nsnull;
                 if (size != 0)
-                    rv = stream->ReadBytes(&data, size);
+                    rv = stream->ReadBytes(size, &data);
                 if (NS_SUCCEEDED(rv)) {
                     char *olddata;
                     uint32 oldsize;

content/xul/content/src/nsXULElement.cpp

@@ -5008,7 +5008,7 @@ nsXULPrototypeScript::Deserialize(nsIObjectInputStream* aStream,
     if (NS_FAILED(rv)) return rv;
 
     char* data;
-    rv = aStream->ReadBytes(&data, size);
+    rv = aStream->ReadBytes(size, &data);
     if (NS_SUCCEEDED(rv)) {
         JSContext* cx = NS_REINTERPRET_CAST(JSContext*,
                                             aContext->GetNativeContext());