Merge "media: Move video buffer timestamp adjustment from CodecSource to GraphicBufferSource." into nyc-dr1-dev am: 115d98aba2 am: 3fb45bb639 am: 71285ac6a0
am: 293fa5ef8c

Change-Id: I45e57f3b89e18f89bdfe3c0fff6db0e8a21d0c5e