Merge "Restrict negative and integer overflow timestamps in the WebmFrameThread" into main am: 57a9016af2

Original change: https://android-review.googlesource.com/c/platform/frameworks/av/+/2809185

Change-Id: I364f5e8d3799b7f045c12acd94069280f797f0dc
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>