Print an error when trying to launch an incognito browser and incognito is disabled.
Print an error when trying to launch an incognito browser and incognito is disabled.

BUG=90759
TEST=Set the IncognitoEnabled policy to false. Start the browser with the --incognito switch. An error message should be displayed, and a normal browser is started.


Review URL: http://codereview.chromium.org/7562009

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@96039 0039d316-1c4b-4281-b951-d872f2087c98

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