Removed unused VideoCaptureCapability parameters.
Namely |session_id|, |expected_capture_delay| and |interlaced| parameters
which were never read, just set, and with one exception, to meaningless
values (0, false, etc). The exception was desktop video capture, that set
|expected_capture_delay| to a tentatively senseful value.
This CL is a refactoring/cleanup.
BUG=297597
Review URL: https://codereview.chromium.org/
32323014
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@231037 0039d316-1c4b-4281-b951-d872f2087c98