Don't use base::MessageLoop::{Quit,QuitClosure} in chrome/

This patch renames base::MessageLoop::{Quit,QuitClosure} to
base::MessageLoop::{QuitWhenIdle,QuitWhenIdleClosure}.

BUG=131220
TEST=
R=thestig@chromium.org

Review URL: https://codereview.chromium.org/1395103003

Cr-Commit-Position: refs/heads/master@{#353376}
153 files changed