Rev stats file name to handle backwards incompatibility
Rev stats file name to handle backwards incompatibility

There was a format change to this shared-memory file.  Mike realized 
that changing the file name would avoid cross-version conflicts, allowing
both new and old versions to run on one machine.

Credit for diagnosis and repair goes to Mike (his build is currently horked,
so I'm landing for him).

bug=4767

r=mbelshe
Review URL: http://codereview.chromium.org/12698

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@6071 0039d316-1c4b-4281-b951-d872f2087c98

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