Reviewed by Gustavo Noronha Silva.

    Reviewed by Gustavo Noronha Silva.

        [GStreamer] GTK XOverlay support in GStreamerGWorld
        https://bugs.webkit.org/show_bug.cgi?id=39474

        * configure.ac: gst-interfaces link support needed for use of
        GstXOverlay interface.
        * GNUmakefile.am: Added new FullscreenVideoController files in the
        build.

LayoutTests:

        Reviewed by Gustavo Noronha Silva.

        [GStreamer] GTK XOverlay support in GStreamerGWorld
        https://bugs.webkit.org/show_bug.cgi?id=39474

        Rebaselined tests showing the video controls containing the new
        fullscreen button.

        * platform/gtk/media/controls-after-reload-expected.txt:
        * platform/gtk/media/controls-drag-timebar-expected.txt:
        * platform/gtk/media/controls-strict-expected.txt:
        * platform/gtk/media/controls-styling-expected.txt:
        * platform/gtk/media/video-controls-rendering-expected.txt:

WebCore:

        Reviewed by Gustavo Noronha Silva.

        [GStreamer] GTK XOverlay support in GStreamerGWorld
        https://bugs.webkit.org/show_bug.cgi?id=39474

        GStreamerGWorld now catches synchronous messages coming from the
        sinks and creates a GTK window where the video can be overlayed if
        fullscreen display is requested using enterFullscreen.

        * GNUmakefile.am:
        * platform/graphics/gstreamer/GStreamerGWorld.cpp:
        (WebCore::gstGWorldSyncMessageCallback):
        (WebCore::GStreamerGWorld::GStreamerGWorld):
        (WebCore::GStreamerGWorld::~GStreamerGWorld):
        (WebCore::GStreamerGWorld::enterFullscreen):
        (WebCore::GStreamerGWorld::exitFullscreen):
        (WebCore::GStreamerGWorld::setWindowOverlay):
        * platform/graphics/gstreamer/GStreamerGWorld.h:
        (WebCore::GStreamerGWorld::pipeline):
        (WebCore::GStreamerGWorld::platformVideoWindow):
        * platform/graphics/gstreamer/MediaPlayerPrivateGStreamer.cpp:
        * platform/graphics/gstreamer/PlatformVideoWindow.h: Added.
        (WebCore::PlatformVideoWindow::createWindow):
        (WebCore::PlatformVideoWindow::window):
        (WebCore::PlatformVideoWindow::videoWindowId):
        * platform/graphics/gstreamer/PlatformVideoWindowGtk.cpp: Added.
        (PlatformVideoWindow::PlatformVideoWindow):

WebKt/gtk:

        Reviewed by Gustavo Noronha Silva.

        [GStreamer] GTK XOverlay support in GStreamerGWorld
        https://bugs.webkit.org/show_bug.cgi?id=39474

        New FullscreenVideoController object, private in the webview. It
        is created when the user presses the fullscreen button of the
        video controls. Video is displayed in fullscreen, controls are
        displayed when the user moves the mouse and when the video is
        paused. There's also basic keyboard shortcuts support: F/f to
        leave fullscreen, space to toggle play/pause and up/down to
        control volume.

        * WebCoreSupport/ChromeClientGtk.cpp:
        (WebKit::ChromeClient::supportsFullscreenForNode):
        (WebKit::ChromeClient::enterFullscreenForNode):
        (WebKit::ChromeClient::exitFullscreenForNode):
        * WebCoreSupport/ChromeClientGtk.h:
        * WebCoreSupport/FullscreenVideoController.cpp: Added.
        (hideHudCallback):
        (onFullscreenGtkMotionNotifyEvent):
        (onFullscreenGtkActiveNotification):
        (onFullscreenGtkConfigureEvent):
        (onFullscreenGtkDestroy):
        (togglePlayPauseActivated):
        (exitFullscreenActivated):
        (progressBarUpdateCallback):
        (timeScaleButtonPressed):
        (timeScaleButtonReleased):
        (timeScaleValueChanged):
        (volumeValueChanged):
        (playerVolumeChangedCallback):
        (playerMuteChangedCallback):
        (FullscreenVideoController::FullscreenVideoController):
        (FullscreenVideoController::~FullscreenVideoController):
        (FullscreenVideoController::setMediaElement):
        (FullscreenVideoController::gtkConfigure):
        (FullscreenVideoController::showHud):
        (FullscreenVideoController::hideHud):
        (onFullscreenGtkKeyPressEvent):
        (FullscreenVideoController::enterFullscreen):
        (FullscreenVideoController::updateHudPosition):
        (FullscreenVideoController::exitOnUserRequest):
        (FullscreenVideoController::exitFullscreen):
        (FullscreenVideoController::canPlay):
        (FullscreenVideoController::play):
        (FullscreenVideoController::pause):
        (FullscreenVideoController::playStateChanged):
        (FullscreenVideoController::togglePlay):
        (FullscreenVideoController::volume):
        (FullscreenVideoController::muted):
        (FullscreenVideoController::setVolume):
        (FullscreenVideoController::volumeChanged):
        (FullscreenVideoController::muteChanged):
        (FullscreenVideoController::currentTime):
        (FullscreenVideoController::setCurrentTime):
        (FullscreenVideoController::duration):
        (FullscreenVideoController::percentLoaded):
        (FullscreenVideoController::beginSeek):
        (FullscreenVideoController::doSeek):
        (FullscreenVideoController::endSeek):
        (timeToString):
        (FullscreenVideoController::updateHudProgressBar):
        (FullscreenVideoController::createHud):
        * WebCoreSupport/FullscreenVideoController.h: Added.
        (FullscreenVideoController::mediaElement):
        * webkit/webkitprivate.cpp:
        (webkit_web_view_enter_fullscreen):
        (webkit_web_view_exit_fullscreen):
        * webkit/webkitprivate.h:

WebKit/gtk/po:

        Reviewed by Gustavo Noronha Silva.

        [GStreamer] GTK XOverlay support in GStreamerGWorld
        https://bugs.webkit.org/show_bug.cgi?id=39474

        * POTFILES: Added new file that contains strings to extract.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@65658 268f45cc-cd09-0410-ab3c-d52691b4dbfc