Reviewed by Adam and Steve.
- added hooks needed to implement showModalDialog on Windows
* Interfaces/IWebUIDelegate.idl: Added canRunModal, createModalDialog,
and runModal functions to the end of IWebUIDelegate3.
* WebChromeClient.h: Added uiDelegate and uiDelegate2 helper functions,
so it's easier to write client functions.
* WebChromeClient.cpp:
(WebChromeClient::createWindow): Implemented dialog case. Calls IWebUIDelegate3.
(WebChromeClient::canRunModal): Implemented. Calls IWebUIDelegate3.
(WebChromeClient::runModal): Ditto.
(WebChromeClient::uiDelegate): Added.
(WebChromeClient::uiDelegate2): Added.
(WebChromeClient::uiDelegate3): Added.
git-svn-id: https://svn.webkit.org/repository/webkit/trunk@27481
268f45cc-cd09-0410-ab3c-
d52691b4dbfc