This should stop the random hangs due to chrome/app/chrome_dll_main.cc(616)] Check failed: PathService::Override(chrome::DIR_USER_DATA, user_data_dir)??
This should stop the random hangs due to chrome/app/chrome_dll_main.cc(616)] Check failed: PathService::Override(chrome::DIR_USER_DATA, user_data_dir)??

Revert 41369 - Linux: Pass userdatadir to the Zygote.

BUG=none
TEST=On Linux, "chrome enablelogging userdatadir=/tmp/foobar" writes renderer logs to chrome_debug.log in /tmp/foobar rather than in $XDG_CONFIG_HOME.
Review URL: http://codereview.chromium.org/885003

TBR=thestig@chromium.org

Review URL: http://codereview.chromium.org/848009

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@41518 0039d316-1c4b-4281-b951-d872f2087c98

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