GitLab

This merges ResetProfileSettingsOverlay and
TriggeredResetProfileSettingsOverlay into a single class.

BUG=636435
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:closure_compilation

Review-Url: https://codereview.chromium.org/2334003006
Cr-Commit-Position: refs/heads/master@{#418876}