Remove CefRenderProcessHandler::OnBeforeNavigation (issue #1076).

git-svn-id: http://chromiumembedded.googlecode.com/svn/trunk@1443 5089003a-bbd8-11dd-ad1f-f1f9622dbc98
Remove unused variable (issue #1079).

git-svn-id: http://chromiumembedded.googlecode.com/svn/trunk@1444 5089003a-bbd8-11dd-ad1f-f1f9622dbc98