Merge "Fix Gallery2 bug: when play video with USB mouse there is one opaque UI layer on the video(DPU 2D blit will do alpha blending for this UI and 4K video, then it cant achieve 60fps)" am: 598bf0efb1 am: 7a77bc212d
am: 2f2c4c5740

Change-Id: Ic4dd5e3e7fb56e3e31a52c380373afb992dceea5