Remove calls to User::email() from chrome/browser/ui/webui/*
As a step to removing User::email(), this CL replaces calls to User::email()
with User::GetAccountId().GetUserEmail() in chrome/browser/ui/webui/*
BUG=
462823
Committed:
https://crrev.com/e3ffc4d33b72e1fa0ae6271ece1279fb98d0c0ea
Cr-Commit-Position: refs/heads/master@{#429724}