Revert 184213 > Revert 183407 > > Child process launch - 	Record process creation times. > >  > > Added MPArch.ChildProcessLaunchFirst and MPArch.ChildProcessLaunchSubsequent > > histograms to ltrack all child process creation times. > >  > > This replaces MPArch.RendererLaunchFirst and MPArch.RendererLaunchSubsequent > > histograms that were there earlier. > > https://code.google.com/p/chrome-browser/source/browse/trunk/src/chrome/browser/renderer_host/browser_render_process_host.cc?spec=svn27589&r=27589 > >  > > BUG=167326 > > R=sky@chromium.org > >  > > Review URL: https://chromiumcodereview.appspot.com/12255086 >  > TBR=rtenneti@chromium.org > Review URL: https://codereview.chromium.org/12328066
Revert 184213
> Revert 183407
> > Child process launch - 	Record process creation times.
> > 
> > Added MPArch.ChildProcessLaunchFirst and MPArch.ChildProcessLaunchSubsequent
> > histograms to ltrack all child process creation times.
> > 
> > This replaces MPArch.RendererLaunchFirst and MPArch.RendererLaunchSubsequent
> > histograms that were there earlier.
> > https://code.google.com/p/chrome-browser/source/browse/trunk/src/chrome/browser/renderer_host/browser_render_process_host.cc?spec=svn27589&r=27589
> > 
> > BUG=167326
> > R=sky@chromium.org
> > 
> > Review URL: https://chromiumcodereview.appspot.com/12255086
> 
> TBR=rtenneti@chromium.org
> Review URL: https://codereview.chromium.org/12328066

TBR=rtenneti@chromium.org
Review URL: https://codereview.chromium.org/12328088

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@184451 0039d316-1c4b-4281-b951-d872f2087c98

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