Remove NOTREACHED() in case termination status for BrowserPlugin is TERMINATION_STATUS_STILL_RUNNING. Our code assumes guest's RenderViewGone implies termination status to be one of normal/abnormal/killed/crashed. But the process can be in 'still running/has not exited yet' state after RenderViewGone was called.
Remove NOTREACHED() in case termination status for BrowserPlugin is TERMINATION_STATUS_STILL_RUNNING.
Our code assumes guest's RenderViewGone implies termination status to be one of normal/abnormal/killed/crashed. But the process can be in 'still running/has not exited yet' state after RenderViewGone was called.

BUG=176226
TEST=This is hard to reproduce, my test page has 20 plugins and I call webview.terminate() on them at once, lot of the time this crashes on OSX, but not consistently. So I'm not sure writing a test would be OK (the test would be false negative).


Review URL: https://chromiumcodereview.appspot.com/12386028

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@186519 0039d316-1c4b-4281-b951-d872f2087c98

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