History UI: Make sure the history items are not too wide.
History UI: Make sure the history items are not too wide.

This uncomments commented out code that used to broken due to a WebKit regression. WebKit was fixed a while ago so this now works again.

BUG=29422
TEST=Go to the history page. Resize the window and make sure you see '...' at the end of the item text.

Review URL: http://codereview.chromium.org/2912003

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@52116 0039d316-1c4b-4281-b951-d872f2087c98

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