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The only remaining user of the text_database full-text-search (FTS) is the
chrome://history page.  The FTS database's index files are large, causing
storage and overhead problems.  This change replaces the history pages
search to use a brute force search over URLs and titles in the History DB (which
is small enough that this gives acceptable performance).

A follow up CL will remove all of the unused FTS and text_database code.

BUG=247417
TEST=Tested searches in history page using a number of different character sets.

Review URL: https://chromiumcodereview.appspot.com/16776004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@208068 0039d316-1c4b-4281-b951-d872f2087c98