Mark intents as immutable

Test: manual
Fixes: 169792886
Fixes: 169793537
Fixes: 169793764
Change-Id: I8ae9efe732b468b8e13e264b0af8f81c596e2e89
(cherry picked from commit 11f2e288466476127e3417e36357154dceb0af8e)
3 files changed