Merge "CEC : Add validity check methods for some common operands" am: 75ec2dae7d am: f21e52e13c am: eac0392beb am: 9a39704577

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1458064

Change-Id: I52ec4fb9b32150f1f11704e6b46a8828796dff43