google/trace-viewer — pull request #664 by kphanee (2014-11-14 12:45:18+00:00)
Title: Re-enable flow events checkbox

Adding the Flow Event check box back which was removed as part
of https://codereview.appspot.com/58000043/ after making the
category disabled-by-default.

BUG=653

R=dsinclar,nduca