Event matching by regular expression matching on URLs.

Uses FilteredRE2 implementation to more efficiently match lots of regexes at once by prefiltering.

BUG=135609,112155

Review URL: https://codereview.chromium.org/10910179

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@156693 0039d316-1c4b-4281-b951-d872f2087c98
20 files changed