Fix Qt/Linux build after Adele's popup menu changes.

        * CMakeLists.txt:
        * platform/qt/FileChooserQt.cpp:
        (WebCore::FileChooser::disconnectUploadControl):
        * platform/qt/PopupMenuQt.cpp: Added.
        (WebCore::PopupMenu::PopupMenu):
        (WebCore::PopupMenu::~PopupMenu):
        (WebCore::PopupMenu::clear):
        (WebCore::PopupMenu::populate):
        (WebCore::PopupMenu::show):
        (WebCore::PopupMenu::hide):
        (WebCore::PopupMenu::addSeparator):
        (WebCore::PopupMenu::addGroupLabel):
        (WebCore::PopupMenu::addOption):
        * platform/qt/RenderPopupMenuQt.cpp: Removed.
        * platform/qt/RenderPopupMenuQt.h: Removed.
        * platform/qt/RenderThemeQt.cpp:



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@17034 268f45cc-cd09-0410-ab3c-d52691b4dbfc