tree fd68a2dc09449d231cb8adb88072cdeb4525e788
parent f4c00652768133eb997da39cc34633cdaa64354a
author Mingjing Zhang <mjzhang@google.com> 1636080100 -0400
committer Mingjing Zhang <mjzhang@google.com> 1636080100 -0400

Add metric and derived events for dropped frames

This CL adds the experimental dropped frame metric, and a derived event
track for this metric.

Currently dropped frames from different Renderer processes are shown in
a single track. Future updates will separate the dropped frame events
into different tracks by the frames' origin process.

Bug: 204465880
Change-Id: Ia9c71a385e8d49089efd7f60872e7d78c6bb8806