[gtk] Update page-info icons to match behavior in page_info_window_view.cc.

BUG=52916
TEST=Verify correct page-info icons in GTK.
Review URL: http://codereview.chromium.org/3502007

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@60730 0039d316-1c4b-4281-b951-d872f2087c98
1 file changed