Merge remote branch 'cros/upstream' into autotest-rebase

Merged to upstream trunk@5066, from trunk@4749.

There is no way I could enlist each individual CL from the upstream here since it will blow up the changelist description field.

BUG=
TEST=
Had patched this CL into a fresh cut client to avoid any side effect.
run_remote_test bvt from both emerged location and third_party/autotest/file.

Both test passed!

We should also keep any eye on this to see how it gets propagated into cautotest server.
TBR=dalecurtis

Change-Id: I72f2bc7a9de530178484aea1bfb5ace68bcad029
diff --git a/server/hosts/serial.py b/server/hosts/serial.py
index d514dba..d363cb7 100644
--- a/server/hosts/serial.py
+++ b/server/hosts/serial.py
@@ -165,6 +165,7 @@
                     # Run on num_attempts=1 or last retry
                     try:
                         self.wait_for_restart(timeout,
+                                              old_boot_id=old_boot_id,
                                               **wait_for_restart_kwargs)
                     except error.AutoservShutdownError:
                         logging.warning(warning_msg, num_attempts, num_attempts)