Import upstream getOutputStream/getInputStream changes

Upstream changes:

    7181793: Socket getOutputStream create streams that cannot be GC'ed until Socket is closed
    Reviewed-by: alanb, chegar

    http://hg.openjdk.java.net/jdk8/jdk8/jdk/rev/71de5e31d497

    8003833: Spurious NPE from Socket.getIn/OutputStream
    Reviewed-by: alanb, dsamersoff

    http://hg.openjdk.java.net/jdk8/jdk8/jdk/rev/ddf97baea570

Bug: 29067535
Test: Passes CTS libcore.java.net.SocketTest
Change-Id: I97aec63fcb87f109ca72cad4c15a7cd7bd0bd69c
1 file changed