
Fix some code which I suspect was leading to the browser channel sometimes publishing bogus server reachability events.  ChannelRequest was reading an XhrIo's http status code without checking that it had raised an http status error.

R=nicksantos
DELTA=1  (0 added, 0 deleted, 1 changed)


Revision created by MOE tool push_codebase.
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git-svn-id: 35241bd708fe29f1f6c7a4322d322e99ff93b95e@2258 0b95b8e8-c90f-11de-9d4f-f947ee5921c8

Kuniwak/google-closure-library-jsdoc,jarib/google-closure-library,Kuniwak/google-closure-library-jsdoc,jarib/google-closure-library