commit caafebcfdc31a9e9aeb98605232af4a94e965344
author Ioana Stefan <ioanastefan@google.com> Mon Oct 19 16:03:24 2020 +0200
committer Ioana Stefan <ioanastefan@google.com> Thu Oct 29 15:03:12 2020 +0000
tree 3f1c1d5395f27a6104c9df41203a6736dc1cb70d
parent f634d357238e7b0678e2c712ee0c9ed3293f2cc8

Add fallback mechanism for identifier of older window traces

Older WM traces might not have an identifier set for
WindowContainer since this was added in ag/11659380.

This change makes Winscope again backwards compatible with older
WM traces. If it exists, the identifier of a parent holds the
place of a missing WindowContainer identifier. It is possible
that both identifiers are null, in which case the title and the
hashCode of WindowContainer are set as empty strings.

Bug: 170372278
Test: build Winscope locally, upload a WM trace and visualise it
Change-Id: Ieb5adc1d6a94d9a9215304b92114b807f1d812b4