tree dea15d3f1999eccb041d4df6f2eb84e88f332717
parent 03cd3247db15d954f4972738296d8394a7afaf13
author Chris Craik <ccraik@google.com> 1634171692 -0700
committer Chris Craik <ccraik@google.com> 1634234620 -0700

Switch StartupTimingMetric to custom trace-based implementation

Bug: 183129298
Bug: 190219056
Test: TrivialStartupBenchmark # macrobench
Test: ./gradlew benchmark:benchmark-common:cC benchmark:benchmark-macro:cC

Relnote: """Backport StartupTimingMetric to work back to API 23. This
new implementation also better handles reportFullyDrawn() to wait
until corresponding content has been rendered."""

Switch StartupTimingMetric to custom trace metric. This new version:

- Is validated against the old in a few specific cases on newer devices

- Supports old API levels (where trace section names were different, and sometimes not present)

- Fixes reportFullyDrawn to not define the fully drawn point
  immediately, and instead wait until rendering completes.

Change-Id: If3ac9a339bedbb61785c80ea78c0e7ae8f9018e9