Unreviewed, rolling out r108522.

Unreviewed, rolling out r108522.
http://trac.webkit.org/changeset/108522
https://bugs.webkit.org/show_bug.cgi?id=76181

Broke 4 fullscreen tests on GTK.

Source/WebKit/gtk:

* WebCoreSupport/ChromeClientGtk.cpp:
(WebKit::ChromeClient::supportsFullScreenForElement):
(WebKit::ChromeClient::enterFullScreenForElement):
(WebKit::ChromeClient::exitFullScreenForElement):
* WebCoreSupport/ChromeClientGtk.h:
(ChromeClient):
* tests/testwebview.c:
* webkit/webkitwebview.cpp:
(webkit_web_view_class_init):
* webkit/webkitwebview.h:
(_WebKitWebViewClass):

Tools:

* GtkLauncher/main.c:
(createBrowser):
(createWindow):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@108527 268f45cc-cd09-0410-ab3c-d52691b4dbfc