## Description
Double clicking the document pip window requests fullscreen but this
fails. The gesture on the pip window can't initiate fullscreen.
Fixes#8877
## Specific Changes proposed
Change the default double click action to just exit pip. This is the
same behaviour as before without the error, as requestFullScreen() calls
exitPictureInPicture();
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Co-authored-by: Gary Katsevman <git@gkatsev.com>
