Misc. tiny cleanups:

* Inline unix_hacker() functions; don't inline virtual functions
* Use OmniboxEditController where possible
* Infobar -> InfoBar
* Colons after parent class names in header section headings
* Eliminate uncalled functions from TestLocationBar
* Inline TestLocationBar into only user

BUG=none
TEST=none
R=sky@chromium.org

Review URL: https://codereview.chromium.org/25803003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@226620 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 226620
DevTools: Never instantiate DevToolsAgentHost on threads other than UI

BUG=None

Review URL: https://codereview.chromium.org/25571005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@226622 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 226622