Extend temporary whitelisting mechanism to support trampolines

from PendingIntents for broadcasts and services if PI.send()
caller is in the foreground

Bug: 122886181
Bug: 110956953
Test: atest WmTests:ActivityStarterTests
Test: manual, with Chrome custom tabs
Change-Id: I5f9ee41a6fdbca51ad356825c3ede151b98c77e8