GitLab

Wrap the language settings overflow menu in a <cr-shared-menu>. The contents
of the language detail page will be moved into this menu, so it would be
better not to stamp it once for each item in the list of enabled languages.

BUG=630982
TEST=SettingsLanguagesPageBrowserTest
R=stevenjb@chromium.org
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:closure_compilation

Review-Url: https://codereview.chromium.org/2277633003
Cr-Commit-Position: refs/heads/master@{#414891}