Revert "Revert "Enable insets flag for IME""

This reverts commit d01913ae835e47974f1dffce715748f40a008b78.

Reason for revert: We're ready to re-enable the flag since b/149121559 is fixed

Change-Id: I1aca81bb6c2dbb544841a2a6d17ef477cb8bdc9e
1 file changed