Fix potential NPE in RemoteConnection.

When creating an instance of RemoteConnection, the code does not properly
handle the case where the video provider is null.  This could cause a
RemoteConnection.VideoProvider to be created for a non-existent binder.

Bug: 31372624
Change-Id: I990084e2d2d68cdf2dda426cb58ad68785b35422
1 file changed