History: Fix regression of time alignments in search results.

http://crrev.com/233935 changed the width of history entry times to
be dynamic, however the width determination was incorrectly done
only for non-search entries.

BUG=317455
TEST=See repro steps in bug.

Review URL: https://codereview.chromium.org/58853016

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@234610 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 234610