Merge "[MediaProjection] Clarify createVirtualDisplay flags javadoc" into udc-dev am: 833a6c895a

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23727669

Change-Id: Ib8a44593d7f7d59e53e126bd444d2730cdb3c148
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>