More strict mode fixes for HSTS debug UI.
More strict mode fixes for HSTS debug UI.

BUG=95317
TEST=Check that querying for mail.google.com in the HSTS debug UI (under about:net-internals), works.


Review URL: http://codereview.chromium.org/7739031

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@99809 0039d316-1c4b-4281-b951-d872f2087c98

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