Special behaviour for menu=off mode.
Special behaviour for menu=off mode.

Regression was introduced in r76322 dated Mar 1 00:26:03 2011 +0000
We should not fall to any parent page in menu=off mode

(In menu=off mode (used for proxy settings in login screen:
chrome://settings/proxy?menu=off) we want to hide any parent pages and navbar.)

BUG=chromium-os:12732
TEST=Manual

Review URL: http://codereview.chromium.org/6624043

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@77631 0039d316-1c4b-4281-b951-d872f2087c98

rogerwang/chromium,mohamed--abdel-maksoud/chromium.src,timopulkkinen/BubbleFish,jaruba/chromium.src,markYoungH/chromium.src,zcbenz/cefode-chromium,krieger-od/nwjs_chromium.src,PeterWangIntel/chromium-crosswalk,axinging/chromium-crosswalk,M4sse/chromium.src,rogerwang/chromium,ondra-novak/chromium.src,Fireblend/chromium-crosswalk,mohamed--abdel-maksoud/chromium.src,Fireblend/chromium-crosswalk,Chilledheart/chromium,dednal/chromium.src,hgl888/chromium-crosswalk-efl,anirudhSK/chromium,Chilledheart/chromium,anirudhSK/chromium,hgl888/chromium-crosswalk-efl,littlstar/chromium.src,ondra-novak/chromium.src,krieger-od/nwjs_chromium.src,bright-sparks/chromium-spacewalk,ChromiumWebApps/chromium,Jonekee/chromium.src,dushu1203/chromium.src,PeterWangIntel/chromium-crosswalk,robclark/chromium,Chilledheart/chromium,Pluto-tv/chromium-crosswalk,timopulkkinen/BubbleFish,keishi/chromium,junmin-zhu/chromium-rivertrail,keishi/chromium,pozdnyakov/chromium-crosswalk,mogoweb/chromium-crosswalk,bright-sparks/chromium-spacewalk,patrickm/chromium.src,ChromiumWebApps/chromium,hgl888/chromium-crosswalk-efl,Just-D/chromium-1,bright-sparks/chromium-spacewalk,TheTypoMaster/chromium-crosswalk,jaruba/chromium.src,dushu1203/chromium.src,Pluto-tv/chromium-crosswalk,Chilledheart/chromium,hujiajie/pa-chromium,pozdnyakov/chromium-crosswalk,bright-sparks/chromium-spacewalk,markYoungH/chromium.src,hgl888/chromium-crosswalk-efl,junmin-zhu/chromium-rivertrail,keishi/chromium,robclark/chromium,junmin-zhu/chromium-rivertrail,hujiajie/pa-chromium,hujiajie/pa-chromium,ChromiumWebApps/chromium,dednal/chromium.src,chuan9/chromium-crosswalk,TheTypoMaster/chromium-crosswalk,junmin-zhu/chromium-rivertrail,dushu1203/chromium.src,keishi/chromium,krieger-od/nwjs_chromium.src,Just-D/chromium-1,ondra-novak/chromium.src,PeterWangIntel/chromium-crosswalk,junmin-zhu/chromium-rivertrail,M4sse/chromium.src,chuan9/chromium-crosswalk,patrickm/chromium.src,ondra-novak/chromium.src,bright-sparks/chromium-spacewalk,zcbenz/cefode-chromium,keishi/chromium,rogerwang/chromium,Chilledheart/chromium,markYoungH/chromium.src,patrickm/chromium.src,keishi/chromium,pozdnyakov/chromium-crosswalk,Just-D/chromium-1,Just-D/chromium-1,bright-sparks/chromium-spacewalk,rogerwang/chromium,krieger-od/nwjs_chromium.src,patrickm/chromium.src,rogerwang/chromium,PeterWangIntel/chromium-crosswalk,Fireblend/chromium-crosswalk,dednal/chromium.src,dednal/chromium.src,ondra-novak/chromium.src,nacl-webkit/chrome_deps,mohamed--abdel-maksoud/chromium.src,pozdnyakov/chromium-crosswalk,Jonekee/chromium.src,fujunwei/chromium-crosswalk,chuan9/chromium-crosswalk,ChromiumWebApps/chromium,markYoungH/chromium.src,Fireblend/chromium-crosswalk,chuan9/chromium-crosswalk,mogoweb/chromium-crosswalk,anirudhSK/chromium,timopulkkinen/BubbleFish,chuan9/chromium-crosswalk,pozdnyakov/chromium-crosswalk,hujiajie/pa-chromium,dushu1203/chromium.src,axinging/chromium-crosswalk,ltilve/chromium,robclark/chromium,hgl888/chromium-crosswalk-efl,axinging/chromium-crosswalk,robclark/chromium,krieger-od/nwjs_chromium.src,fujunwei/chromium-crosswalk,ltilve/chromium,littlstar/chromium.src,hujiajie/pa-chromium,mohamed--abdel-maksoud/chromium.src,M4sse/chromium.src,hgl888/chromium-crosswalk,ltilve/chromium,mohamed--abdel-maksoud/chromium.src,mohamed--abdel-maksoud/chromium.src,crosswalk-project/chromium-crosswalk-efl,dednal/chromium.src,anirudhSK/chromium,nacl-webkit/chrome_deps,nacl-webkit/chrome_deps,TheTypoMaster/chromium-crosswalk,mogoweb/chromium-crosswalk,crosswalk-project/chromium-crosswalk-efl,crosswalk-project/chromium-crosswalk-efl,TheTypoMaster/chromium-crosswalk,Just-D/chromium-1,patrickm/chromium.src,ltilve/chromium,anirudhSK/chromium,axinging/chromium-crosswalk,PeterWangIntel/chromium-crosswalk,dushu1203/chromium.src,hgl888/chromium-crosswalk-efl,anirudhSK/chromium,bright-sparks/chromium-spacewalk,ChromiumWebApps/chromium,Just-D/chromium-1,ondra-novak/chromium.src,mohamed--abdel-maksoud/chromium.src,M4sse/chromium.src,Pluto-tv/chromium-crosswalk,zcbenz/cefode-chromium,nacl-webkit/chrome_deps,keishi/chromium,markYoungH/chromium.src,ondra-novak/chromium.src,Jonekee/chromium.src,hujiajie/pa-chromium,mogoweb/chromium-crosswalk,Chilledheart/chromium,pozdnyakov/chromium-crosswalk,chuan9/chromium-crosswalk,krieger-od/nwjs_chromium.src,timopulkkinen/BubbleFish,junmin-zhu/chromium-rivertrail,junmin-zhu/chromium-rivertrail,junmin-zhu/chromium-rivertrail,markYoungH/chromium.src,axinging/chromium-crosswalk,littlstar/chromium.src,markYoungH/chromium.src,zcbenz/cefode-chromium,fujunwei/chromium-crosswalk,robclark/chromium,TheTypoMaster/chromium-crosswalk,robclark/chromium,PeterWangIntel/chromium-crosswalk,bright-sparks/chromium-spacewalk,patrickm/chromium.src,M4sse/chromium.src,hujiajie/pa-chromium,PeterWangIntel/chromium-crosswalk,krieger-od/nwjs_chromium.src,TheTypoMaster/chromium-crosswalk,hujiajie/pa-chromium,fujunwei/chromium-crosswalk,pozdnyakov/chromium-crosswalk,littlstar/chromium.src,crosswalk-project/chromium-crosswalk-efl,jaruba/chromium.src,M4sse/chromium.src,ChromiumWebApps/chromium,timopulkkinen/BubbleFish,dednal/chromium.src,mogoweb/chromium-crosswalk,dednal/chromium.src,bright-sparks/chromium-spacewalk,Jonekee/chromium.src,hgl888/chromium-crosswalk,PeterWangIntel/chromium-crosswalk,pozdnyakov/chromium-crosswalk,axinging/chromium-crosswalk,patrickm/chromium.src,markYoungH/chromium.src,fujunwei/chromium-crosswalk,fujunwei/chromium-crosswalk,robclark/chromium,ChromiumWebApps/chromium,mohamed--abdel-maksoud/chromium.src,zcbenz/cefode-chromium,krieger-od/nwjs_chromium.src,TheTypoMaster/chromium-crosswalk,jaruba/chromium.src,hgl888/chromium-crosswalk,Just-D/chromium-1,markYoungH/chromium.src,axinging/chromium-crosswalk,dednal/chromium.src,nacl-webkit/chrome_deps,hgl888/chromium-crosswalk-efl,hgl888/chromium-crosswalk-efl,crosswalk-project/chromium-crosswalk-efl,zcbenz/cefode-chromium,Pluto-tv/chromium-crosswalk,ChromiumWebApps/chromium,zcbenz/cefode-chromium,hgl888/chromium-crosswalk,axinging/chromium-crosswalk,timopulkkinen/BubbleFish,rogerwang/chromium,jaruba/chromium.src,M4sse/chromium.src,Jonekee/chromium.src,Just-D/chromium-1,axinging/chromium-crosswalk,ltilve/chromium,keishi/chromium,mogoweb/chromium-crosswalk,anirudhSK/chromium,dushu1203/chromium.src,chuan9/chromium-crosswalk,jaruba/chromium.src,Jonekee/chromium.src,ChromiumWebApps/chromium,crosswalk-project/chromium-crosswalk-efl,Chilledheart/chromium,keishi/chromium,krieger-od/nwjs_chromium.src,ondra-novak/chromium.src,zcbenz/cefode-chromium,ltilve/chromium,robclark/chromium,jaruba/chromium.src,nacl-webkit/chrome_deps,ChromiumWebApps/chromium,M4sse/chromium.src,crosswalk-project/chromium-crosswalk-efl,ltilve/chromium,Fireblend/chromium-crosswalk,Pluto-tv/chromium-crosswalk,M4sse/chromium.src,fujunwei/chromium-crosswalk,Jonekee/chromium.src,zcbenz/cefode-chromium,robclark/chromium,mogoweb/chromium-crosswalk,anirudhSK/chromium,markYoungH/chromium.src,dushu1203/chromium.src,timopulkkinen/BubbleFish,nacl-webkit/chrome_deps,hgl888/chromium-crosswalk-efl,Chilledheart/chromium,junmin-zhu/chromium-rivertrail,Fireblend/chromium-crosswalk,nacl-webkit/chrome_deps,Pluto-tv/chromium-crosswalk,rogerwang/chromium,jaruba/chromium.src,Pluto-tv/chromium-crosswalk,dushu1203/chromium.src,markYoungH/chromium.src,hujiajie/pa-chromium,Jonekee/chromium.src,junmin-zhu/chromium-rivertrail,axinging/chromium-crosswalk,pozdnyakov/chromium-crosswalk,Fireblend/chromium-crosswalk,rogerwang/chromium,crosswalk-project/chromium-crosswalk-efl,littlstar/chromium.src,fujunwei/chromium-crosswalk,timopulkkinen/BubbleFish,ltilve/chromium,dednal/chromium.src,mohamed--abdel-maksoud/chromium.src,ondra-novak/chromium.src,TheTypoMaster/chromium-crosswalk,crosswalk-project/chromium-crosswalk-efl,anirudhSK/chromium,hgl888/chromium-crosswalk,keishi/chromium,dednal/chromium.src,Jonekee/chromium.src,pozdnyakov/chromium-crosswalk,pozdnyakov/chromium-crosswalk,dushu1203/chromium.src,M4sse/chromium.src,rogerwang/chromium,dednal/chromium.src,zcbenz/cefode-chromium,mogoweb/chromium-crosswalk,hujiajie/pa-chromium,hgl888/chromium-crosswalk-efl,littlstar/chromium.src,mogoweb/chromium-crosswalk,robclark/chromium,nacl-webkit/chrome_deps,littlstar/chromium.src,axinging/chromium-crosswalk,PeterWangIntel/chromium-crosswalk,jaruba/chromium.src,timopulkkinen/BubbleFish,hgl888/chromium-crosswalk,mohamed--abdel-maksoud/chromium.src,zcbenz/cefode-chromium,hgl888/chromium-crosswalk,krieger-od/nwjs_chromium.src,hgl888/chromium-crosswalk,Just-D/chromium-1,jaruba/chromium.src,hgl888/chromium-crosswalk,rogerwang/chromium,Jonekee/chromium.src,keishi/chromium,fujunwei/chromium-crosswalk,ChromiumWebApps/chromium,ltilve/chromium,chuan9/chromium-crosswalk,littlstar/chromium.src,hujiajie/pa-chromium,timopulkkinen/BubbleFish,Pluto-tv/chromium-crosswalk,krieger-od/nwjs_chromium.src,Fireblend/chromium-crosswalk,Chilledheart/chromium,anirudhSK/chromium,chuan9/chromium-crosswalk,anirudhSK/chromium,Jonekee/chromium.src,timopulkkinen/BubbleFish,nacl-webkit/chrome_deps,junmin-zhu/chromium-rivertrail,mohamed--abdel-maksoud/chromium.src,mogoweb/chromium-crosswalk,anirudhSK/chromium,patrickm/chromium.src,nacl-webkit/chrome_deps,Pluto-tv/chromium-crosswalk,Fireblend/chromium-crosswalk,TheTypoMaster/chromium-crosswalk,dushu1203/chromium.src,jaruba/chromium.src,M4sse/chromium.src,dushu1203/chromium.src,ChromiumWebApps/chromium,patrickm/chromium.src