Experimentally strictify third-party cookie blocking.
Experimentally strictify third-party cookie blocking.

This CL turns on strict third-party cookie blocking by forcing the inclusion of
the `kBlockReadingThirdPartyCookies` command-line flag. The goal is to determine
the effect of a change in cookie-blocking behavior; if we Break The Web™ for
Canary users, we'll drop it. If not, we'll re-evaluate the default behavior of
the `kBlockThirdPartyCookies` pref.

I intend to revert this change after a few Canary cycles.

BUG=98241
TEST=Start Chrome. Is the command-line flag set?


Review URL: http://codereview.chromium.org/8060030

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@103112 0039d316-1c4b-4281-b951-d872f2087c98

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