Chrome OS 9334.18.0, 58.0.3029.31

Please specify Cr-* of the system to which this bug/feature applies (add
the label below).

Steps To Reproduce:
(1) clicking on uber tray or notification 


Result:- Whole browser crashes . Few times not consistent

Crash ID - 2f1804f160000000

views::TrayBubbleView::MouseMovedOutOfHost()
0xb2751767	(chrome -callback.h:47 )	base::debug::TaskAnnotator::RunTask(char const*, base::PendingTask*)
0xb2747ce9	(chrome -message_loop.cc:413 )	base::MessageLoop::DoDelayedWork(base::TimeTicks*)
0xb274883d	(chrome -message_pump_libevent.cc:228 )	base::MessagePumpLibevent::Run(base::MessagePump::Delegate*)
0xb39a0a21	(chrome -run_loop.cc:35 )	base::RunLoop::Run()
0xb3749bd5	(chrome -chrome_browser_main.cc:2010 )	ChromeBrowserMainParts::MainMessageLoopRun(int*)
0xb303aa9f	(chrome -browser_main_loop.cc:984 )	content::BrowserMainLoop::RunMainMessageLoopParts()
0xb303bf6d	(chrome -browser_main_runner.cc:141 )	content::BrowserMainRunnerImpl::Run()
0xb3037cf9	(chrome -browser_main.cc:46 )	content::BrowserMain(content::MainFunctionParams const&)
0xb37047d1	(chrome -content_main_runner.cc:774 )	content::ContentMainRunnerImpl::Run()
0xb3703911	(chrome -content_main.cc:20 )	content::ContentMain(content::ContentMainParams const&)
0xb28acf5b	(chrome -chrome_main.cc:108 )	ChromeMain