Cleanup: Remove chrome/browser/browser_navigator.* and references.

BUG=none
TEST=none

Review URL: http://codereview.chromium.org/4840001

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@65881 0039d316-1c4b-4281-b951-d872f2087c98
20 files changed