Final fix for this bug:

	Radar 3062858 (REGRESSION: failed login at www.usaa.com doesn't return error text)

	We were down to a case where submitting the login form with the return key
	failed since we did not implement either non-standard keyCode (IE-style) or
	which (Netscape-style) UI event extension for getting the value of a key
	press. The form submission code depended on sensing the value of the
	key press by checking one of these properties.

	Since the "which" property also can be used for mouse events, and fixing
	this bug could be done by implementing either keyCode or which, I chose
	to implement keyCode only.

        * khtml/dom/dom2_events.cpp: Added keyCode function definition.
        * khtml/dom/dom2_events.h: Added keyCode function declaration.
        * khtml/ecma/kjs_events.cpp:
        (DOMUIEvent::getValueProperty): Added new KeyCode attribute.
        * khtml/ecma/kjs_events.h: New generated file.
        * khtml/ecma/kjs_events.lut.h: Ditto.
        * khtml/xml/dom2_eventsimpl.cpp:
        (KeyEventImpl::KeyEventImpl): Fixed a bug in khtml that prevented the
        m_keyVal field on KeyEventImpl from ever being set correctly.
        I guess I am the first person ever to care about that value. :-)


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@3028 268f45cc-cd09-0410-ab3c-d52691b4dbfc