Cherry-pick 270593@main (76bc3f4). https://bugs.webkit.org/show_bug.c…

…gi?id=264398

    [GStreamer] Ignore early EOS only when not looping
    https://bugs.webkit.org/show_bug.cgi?id=264398

    Reviewed by Philippe Normand.

    When playing video in a loop using HTML5 video element, the Gstreamer
    debug log sometimes contains the following message, which prevents the
    WPE from correctly stopping the playback before restarting it for the
    next loop and the playback ends up paused forever:

    ```
    webkitmediaplayer MediaPlayerPrivateGStreamer.cpp:1851:handleMessage:<video-1> EOS received but position {23823333333/1000000000 = 23.823333333} is still in the finite playable limits [{0/1 = 0}, {23828333333/1000000000 = 23.828333333}], ignoring it
    ```

    Ignore early EOS only when not looping, otherwise unconditionally
    indicate the stream has ended.

    * Source/WebCore/platform/graphics/gstreamer/MediaPlayerPrivateGStreamer.cpp:
    (WebCore::MediaPlayerPrivateGStreamer::handleMessage):

    Canonical link: https://commits.webkit.org/270593@main

Source/WebCore/platform/graphics/gstreamer/MediaPlayerPrivateGStreamer.cpp

@@ -1859,7 +1859,7 @@ void MediaPlayerPrivateGStreamer::handleMessage(GstMessage* message)
 
         if (GST_CLOCK_TIME_IS_VALID(gstreamerPosition))
             playbackPosition = MediaTime(gstreamerPosition, GST_SECOND);
-        if (!eosFlagIsSetInSink && playbackPosition.isValid() && duration.isValid()
+        if (!player->isLooping() && !eosFlagIsSetInSink && playbackPosition.isValid() && duration.isValid()
             && ((m_playbackRate >= 0 && playbackPosition < duration && duration.isFinite())
             || (m_playbackRate < 0 && playbackPosition > MediaTime::zeroTime()))) {
             GST_DEBUG_OBJECT(pipeline(), "EOS received but position %s is still in the finite playable limits [%s, %s], ignoring it",