Re-enable two pyauto instant-related tests that are now passing.
Re-enable two pyauto instant-related tests that are now passing.

These two pyauto tests were disabled 3-4 months back.  They appear to
be working now.

BUG=87959,83459
TEST=None

Review URL: http://codereview.chromium.org/7994016

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@102387 0039d316-1c4b-4281-b951-d872f2087c98

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