camfrandsen

@cyanglaz @bparrishMines I saw that you reviewed https://github.com/flutter/plugins/pull/5110 the first time. Sorry to make you re-review it... but I would love if you could review this. I did my best...

I am splitting this into two pulls since I touched the webview_flutter_platform_interface: https://github.com/flutter/packages/pull/5292 https://github.com/flutter/packages/pull/5293

@stuartmorgan Ah, sorry about that. I looked at the failures of the checks, and it said that it needed to be broken up... I will re-open this one and close...