Fixes two menu bugs: . Pressing shift-F10 would make context menu appear then immediately   disappear. This is because MenuController was hiding on a   WM_SYSKEYUP. I've changed MenuController to do nothing on   WM_SYSKEYUP. If a sys key is pressed again, we'll get a   WM_SYSKEYDOWN and hide there. . MenuController needed to handle WM_CONTEXTMENU and not dispatch it,   otheriwse we could end up with stacked menus.
Fixes two menu bugs:
. Pressing shift-F10 would make context menu appear then immediately
  disappear. This is because MenuController was hiding on a
  WM_SYSKEYUP. I've changed MenuController to do nothing on
  WM_SYSKEYUP. If a sys key is pressed again, we'll get a
  WM_SYSKEYDOWN and hide there.
. MenuController needed to handle WM_CONTEXTMENU and not dispatch it,
  otheriwse we could end up with stacked menus.

BUG=3685
TEST=bring up bookmark manager, select a row in the table on the
  right. Press shift-F10 and make sure the context menu appears and
  stays up.

Review URL: http://codereview.chromium.org/10635

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@5299 0039d316-1c4b-4281-b951-d872f2087c98

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