This CL fixes the following:
- snake_case -> CapWords
- compulsory docstring added
- style

A followup CL will fix remaining issues as raised by the next version of the WebRTC Python linter (update in progress).

BUG=webrtc:7218
NOTRY=True

Review-Url: https://codereview.webrtc.org/2793903006
Cr-Original-Commit-Position: refs/heads/master@{#17543}
Cr-Mirrored-From: https://chromium.googlesource.com/external/webrtc
Cr-Mirrored-Commit: dea682d25b60820af862cfb8f35a761ef1597784
19 files changed