Add --test-case-file option to be able to efficiently trace a list of test cases.
Add --test-case-file option to be able to efficiently trace a list of test cases.

Group the test cases selection options to make the help page much easier to read.

Refactor the way test cases are selected to simplify the code logic. This option is
useful when a relatively large number of test cases are failing and need to be
traced, without having to trace a specific shard index or the whole test suite.

R=cmp@chromium.org
NOTRY=true
BUG=
TEST=


Review URL: https://chromiumcodereview.appspot.com/10629019

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@144198 0039d316-1c4b-4281-b951-d872f2087c98

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