Add missing set/getExtras to ConversationActions.Request.

All requests / result objects from TextClassifier have get/setRequest,
so ConversationActions.Request should have them as well.

BUG: 130529981

Test: atest cts/tests/tests/view/src/android/view/textclassifier/cts/ConversationActionsTest.java

Change-Id: I19719b009d4f34df8650c669cc24cb304293407a
2 files changed