Reformat style in ParseContext.cpp. Using git cl format. BUG=None Change-Id: Ia0ce03ae8115f45c3bcc4b022acd7e3e88518062 Reviewed-on: https://chromium-review.googlesource.com/287833 Reviewed-by: Geoff Lang <geofflang@chromium.org> Reviewed-by: Zhenyao Mo <zmo@chromium.org> Tested-by: Jamie Madill <jmadill@chromium.org>