Fixing a random hang when exiting full screen in chome.  The same bug doesn't happen in firefox or internet explorer. In chrome, the parent windows handle might get locked and the ShowWindow call is blocked and hang.  The fix is not to hind the window for repositioning. Review URL: http://codereview.chromium.org/6732033
Fixing a random hang when exiting full screen in chome.  The same bug doesn't
happen in firefox or internet explorer. In chrome, the parent windows handle
might get locked and the ShowWindow call is blocked and hang.  The fix is not
to hind the window for repositioning.
Review URL: http://codereview.chromium.org/6732033

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@79409 0039d316-1c4b-4281-b951-d872f2087c98

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