Ensure canceled touch stream uses previous display id

We are observing inconsistent event streams being sent out of
TouchInputMapper. Whenever display id associated with a specific device
changes while touch is in progress, the generated ACTION_CANCEL event
has the new display id instead of the original one.

This causes issues later in the pipeline. In the case when a11y is ON,
the events are sent to a11y and get later re-injected into
InputDispatcher. The InputDispatcher will not resolve the correct
verifier, and as a result will incorrectly reject the event.

In this CL, we are storing the previous display id before
reconfiguration occurs, and then using this stored display id to abort
touches just before reset() is called.

In reset(), we are also canceling touches. That behaviour has to be
maintained, since reset() is a public API that can be called from other
places.

Bug: 378308551
Test: TEST=inputflinger_tests; m $TEST && $ANDROID_HOST_OUT/nativetest64/$TEST/$TEST --gtest_filter="*ChangeAssociatedDisplayIdWhenTouchIsActive*"
Flag: EXEMPT bugfix
Change-Id: I275bdd03929be6dd024c250c1276c05622a0e2ce

0 files changed, 0 insertions, 0 deletions