[WIN] implement more BalloonEvent dispatcher for windows (Show, Hide, TimeOut)
change DisplayBalloon return param to bool
[WIN] make StatusTray class a singleton, add a public function to get the StatusIcon, this is done to fix crash in notification manager trying to create StatusTray that already created by javascript api
[notification][linux] add libnotify to the build package
Merge branch 'notification' into notifcation10

Conflicts:
	build/install-build-deps.sh
	chrome/browser/status_icons/status_icon.h
	chrome/browser/ui/views/status_icons/status_icon_win.cc
	chrome/browser/ui/views/status_icons/status_icon_win.h
Merge branch 'notification10' into development10