BindVertexBuffer should pick up buffer change in other context Buffer is modified in the first context and calling glBindVertexBuffer() of the same buffer on the second context should pick up the buffer changes made in first context. Bug: b/433331119 Change-Id: I694f66b38b11b87e0efa8d9b939f8384120823af Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/6830125 Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Amirali Abdolrashidi <abdolrashidi@google.com> Commit-Queue: Charlie Lao <cclao@google.com>