platform: graphics: add record_merge_trace perfetto script

This script supports simultaneous perfetto tracing from both host
and guest traced services.

BUG=b:174162788
TEST=run script while host and guest are running.

Change-Id: Ic4fe4b843e6490041963ed8d2c6aad0ff124f2a4
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/graphics/+/3076812
Tested-by: John Bates <jbates@chromium.org>
Reviewed-by: David Riley <davidriley@chromium.org>
1 file changed
tree: 701de9f793e6d989c35a9d2330e633d05cff00a9
  1. src/
  2. .gitignore
  3. OWNERS
  4. PRESUBMIT.cfg
  5. PRESUBMIT.py
  6. pylintrc