Disable certain net tests when running under Chrome Frame.
Disable certain net tests when running under Chrome Frame.

The tests verify whether requests can be cancelled when blocking in certain states. A first pass seems to suggest that, under Chrome Frame, the Chrome network stack never enters these states (the transitions occur entirely in IE network stack), thus cannot block in them, and thus the tests are not relevant.

TEST=chrome_frame_net_tests run and pass on machines with IE9 installed.
R=robertshield@chromium.org
Review URL: https://chromiumcodereview.appspot.com/9270045

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@119101 0039d316-1c4b-4281-b951-d872f2087c98

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