TimelinePanel: adjust records list if the time window was changed in another view.

BUG=
R=alph@chromium.org, pfeldman@chromium.org

Review URL: https://codereview.chromium.org/135523004

git-svn-id: svn://svn.chromium.org/blink/trunk@165214 bbb929c8-8fbe-4397-9dbb-9b2b20218538