[Chipbar] Define #shouldIgnoreViewRemoval as a specific API on the

TemporaryViewDisplayController, instead of having subclasses just
override #removeView.

Bug: 245610654
Test: manual: Send a TRANSFER_TRIGGERED event then FAR_FROM_RECEIVER
event and verify the chip is still displayed (i.e. the removal request
is ignored)
Test: MediaTttChipControllerSenderTest
Test: TemporaryViewDisplayControllerTest

Change-Id: I2cb907c5fb563c80c8a5720ae7f70a70e115bd2e