Running heap analysis in separate process does not invoke custom OnLeakFoundCallback callback

Description

Not sure if this is the expected behavior or not. I was expected to have background process trigger callback on the main process with leak analysis data.

Steps to Reproduce

1. Follow https://square.github.io/leakcanary/recipes/#running-the-leakcanary-analysis-in-a-separate-process
2. Use a app that has custom OnLeakFoundCallback callback
3. Make sure dumpHeapWhenDebugging is set to true if using debugger
4. Verify once that callback is not invoked once analysis complete (via debugger breakpoint or logcat)

Expected behavior:

Callback to be invoked in main process.

Version Information

• LeakCanary version: 2.2
• Android OS version: API 29
• Gradle version: n/a