Video code optimization inside photo_capabilities

Before CL: code has got various methods for getting and setting int, bool, double or other parameters.

After CL: values are saved in tables, which are indexed by enums.

Change-Id: Ibde91d176be59528ae8c3ccbf80a436b912b0f67
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1509475
Commit-Queue: Marcin Wiącek <marcin@mwiacek.com>
Reviewed-by: Christian Fremerey <chfremer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#647995}