https://bugs.webkit.org/show_bug.cgi?id=52849
        Make window.print work with WebKit2

        * UIProcess/API/qt/qwkpage.cpp:
        (QWKPage::QWKPage):
        * UIProcess/WebPageProxy.cpp:
        (WebKit::WebPageProxy::printFrame):
        * UIProcess/WebPageProxy.h:
        * UIProcess/WebPageProxy.messages.in:
        * UIProcess/WebUIClient.cpp:
        (WebKit::WebUIClient::printFrame):
        * UIProcess/WebUIClient.h:
        * WebProcess/WebCoreSupport/WebChromeClient.cpp:
        (WebKit::WebChromeClient::print):
        Just pass through deelagte call to a WebKit2 client.

        * UIProcess/API/C/WKPage.h: Also added "Callback" suffix to other printing related function
        types.



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@76306 268f45cc-cd09-0410-ab3c-d52691b4dbfc