RESTRICT AUTOMERGE: When an opaque window has alpha < 0.5, don't let it receive touches.

When a window is declared as opaque but the alpha is low, it's likely a fadeout animation or other visual change that should not affect touch handling.

DISABLE_TOPIC_PROTECTOR

Bug: 266433089
Test: inputflinger_tests
Flag: EXEMPT BUGFIX
Cherrypick-From: https://googleplex-android-review.googlesource.com/q/commit:6211ae2c90836205615dfd6a6aafe7787f0c214f
Merged-In: I4134b2512cf1d0c7bff595db1e011a3357ff130a
Change-Id: I4134b2512cf1d0c7bff595db1e011a3357ff130a
1 file changed