Add "network-shared-worker.html [ Pass Failure ]" to TestExpectations.

We are moving the worker script loading code to the shared worker process.
http://crbug.com/329786
After this cl (https://codereview.chromium.org/133093003/), the loading task is executed in the worker process.
So "http/tests/inspector/network/network-shared-worker.html" will fail.

See https://groups.google.com/a/chromium.org/forum/#!topic/blink-dev/p1FMy9f8DL8 for more details.

BUG=329786

Review URL: https://codereview.chromium.org/151183002

git-svn-id: svn://svn.chromium.org/blink/trunk@166372 bbb929c8-8fbe-4397-9dbb-9b2b20218538