Reviewed by Jan Alonzo.

        Bug 30619: [Linux] Menu key doesn't work
        https://bugs.webkit.org/show_bug.cgi?id=30619

        Test: manual-tests/keyboard-menukey-event.html
        No new layout tests: testing this will require changes in the test
        controller in a platform-specific way.

        * platform/chromium/KeyCodeConversionGtk.cpp:
        (WebCore::windowsKeyCodeForKeyEvent): changed switch-case code for
        GDK_Menu to return VKEY_APPS instead of VKEY_MENU.
        * platform/gtk/KeyEventGtk.cpp:
        (WebCore::windowsKeyCodeForKeyEvent): changed switch-case code for
        GDK_Menu to return V_APPS instead of VK_MENU.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@50051 268f45cc-cd09-0410-ab3c-d52691b4dbfc