Aaron Boodman 798d05ee4a Add Application::RequestQuit().
This allows an application's host (typically the shell) to request the application to gracefully shut down.

There is not currently a caller. It will require additional work in application manager to do that.

R=davemoore@chromium.org

Review URL: https://codereview.chromium.org/853303004
2015-01-20 13:12:16 -08:00
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2015-01-08 09:39:20 -08:00