[automerger skipped] Merge "DO NOT MERGE Make intents immutable" into oc-mr1-dev am: b6bf062e -s ours am: 6c5b7271 -s ours am: 9e262514 am: 4c111e69 -s ours am: fcd53961

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/11630373

Change-Id: I7e783da5c5f5f4bebc70470468ce22fbfc22d471