[pip] preferInitialWindowPlacement
Add preferInitialWindowPlacement to DocumentPictureInPictureOptions
to provide a hint to the UA that the bounds of any previously opened
pip window probably shouldn't be re-used.
See WICG/document-picture-in-picture#119 and
https://chromestatus.com/feature/5183881532932096 for more details.
Change-Id: I3c3cf468046f4e08cbedbde93532e4b34e12a29a
Bug: 312495380
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5608743
Reviewed-by: Philip Rogers pdr@chromium.org
Commit-Queue: Frank Liberato liberato@chromium.org
Reviewed-by: Tommy Steimel steimel@chromium.org
Auto-Submit: Frank Liberato liberato@chromium.org
Cr-Commit-Position: refs/heads/main@{#1328934}