Add new internal resolve method

Instant apps are unique in that any application can start them
with a VIEW/BROWSABLE while only very few apps can see an
instant app using queryIntentActivites, etc... In order to
support this dichotomy, we need an internal hook to resolution
for activity start.

Test: cts-tradefed run commandAndExit cts-dev -m CtsAppSecurityHostTestCases -t android.appsecurity.cts.EphemeralTest
Bug: 25119046
Change-Id: If6974c09c733ff0417ef72cabb9d9e9aca86c37c