Fix ClearSiteData for Pepper Flash.
Fix ClearSiteData for Pepper Flash.

1) Don't pass the path as the site. We don't support site-specific clearing,
   so just pass an empty string.
2) Append the plugin's name to the profile-specific Pepper data directory.


Review URL: http://codereview.chromium.org/10202002

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@133616 0039d316-1c4b-4281-b951-d872f2087c98

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