Remove some non-functional plugins from the Mac blacklist now that users can disable plugins
Remove some non-functional plugins from the Mac blacklist now that users can disable plugins

PDF Browser and O3D were blacklisted because having them handle content in Chrome was worse than not, but there was no way for users to prevent that without uninstalling the plugin entirely. Now that there's UI for disabling plugins, there's no need to keep them on the blacklist.

BUG=25068
TEST=PDF Browser and O3D should show up in about:plugins if installed (although current versions won't actually work).

Review URL: http://codereview.chromium.org/2270004

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@48331 0039d316-1c4b-4281-b951-d872f2087c98

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