Change adapts the `base_capturer_pipewire` so that a portal can be
injected in the capturer. This allows the remoting to inject its
own portal for the purpose of capturing desktop stream as long
as the injected portal provides implementation of the new interface
that is added as part of this change.
Additionally, a method has been exposed on the capturer to get
details about the portal session so that the remoting
implementation can use the same underlying session for controlling
inputs on the remote host.
Finally, desktop capturer interface is extended with a generic
method `GetMetadata` that is used to retrieve session related
information by CRD and relay it over to its input injector. Clients
provide override for the method and it eventually invokes the
underlying `GetSessionDetails` method on the portal instance.
Bug: chromium:1291247
Change-Id: I81b7ce3b949d8be2e24e2d303d5fbc76a849209c
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/256400
Reviewed-by: Alexander Cooper <alcooper@chromium.org>
Commit-Queue: Salman Malik <salmanmalik@google.com>
Cr-Commit-Position: refs/heads/main@{#36323}
e1223747c2