I don't know how it could happen, but according to this bug it's possible for a phantom tab to show the crashed icons. This should make it so that can never happen.
I don't know how it could happen, but according to this bug it's
possible for a phantom tab to show the crashed icons. This should make
it so that can never happen.

BUG=40118
TEST=none

Review URL: http://codereview.chromium.org/2035008

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@46816 0039d316-1c4b-4281-b951-d872f2087c98

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