(5/N)[MediaProjection] Send no frames until user reviews consent

When a host app re-uses a consent token, protect the user's data
by ensuring no frames are sent out until the user has reviewed
the permission dialog.

Test: atest WmTests:ContentRecordingControllerTests
Test: atest WmTests:ContentRecorderTests
Bug: 271323540
Change-Id: I0451ac709b64414fc75f3dfbca5a3dbe9244682d