For example in step 27 of https://ci.chromium.org/ui/p/flutter/builders/staging/Linux%20Android%20AOT%20Engine/705/overview, the engine v1 recipe generates and uploads the size treemap.

But there is no equivalent step in the engine v2 recipe:

https://ci.chromium.org/ui/p/flutter/builders/prod/Linux%20Production%20Engine%20Drone/198545/overview

This data is needed to diagnose and fix Engine binary size regressions.

cc @godofredoc