Don't stop because we couldn't restart usb devices.

One of the build bots was failing to restart one device, but it still had four other devices online it could continue with.

BUG=

Review URL: https://codereview.chromium.org/59753003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@243292 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 243292
Bump up timeout for session restore copy.
Currently uses default timeout of 20 seconds.
However at least 45 seconds are needed to copy the profile on Nakasi.
Bumping the timeout to 60 seconds.

BUG=

Review URL: https://codereview.chromium.org/123853002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@243293 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 243293