Add override annotation to appropriate methods in Camera1Enumerator.

Also move getDeviceNames to a more appropriate location in the file.

NOTRY=True

Review-Url: https://codereview.webrtc.org/2105813002
Cr-Original-Commit-Position: refs/heads/master@{#13312}
Cr-Mirrored-From: https://chromium.googlesource.com/external/webrtc
Cr-Mirrored-Commit: 70fae2ccc6e65967affdce1ebe324c95c207b650
1 file changed