Correct title. 

Just clicking in chrome when the alt tab UI is present breaks it, since alt and click = right click 

If you click "Alt" or minimizing your windows then your can escape it

I dont think very many people are going to click while in the UI

+sgabriel

should mouse click be ignored or should it cancel Alt+Tab?

Ignoring click is probably the way to go.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/c7e292ea58a76fe27c6c247bc640054bcf4cb6aa

commit c7e292ea58a76fe27c6c247bc640054bcf4cb6aa
Author: estade <estade@chromium.org>
Date: Tue Aug 30 04:30:03 2016

Redirect all mouse input to Alt+Tab window when it's visible,
effectively disabling the mouse. Capture is reset when the widget is
destroyed.

BUG= 641171 

Review-Url: https://codereview.chromium.org/2284763002
Cr-Commit-Position: refs/heads/master@{#415096}

[modify] https://crrev.com/c7e292ea58a76fe27c6c247bc640054bcf4cb6aa/ash/common/wm/window_cycle_list.cc
[modify] https://crrev.com/c7e292ea58a76fe27c6c247bc640054bcf4cb6aa/ash/wm/window_cycle_controller_unittest.cc

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/95797140da851b1078706ae6146cb8062d7498eb

commit 95797140da851b1078706ae6146cb8062d7498eb
Author: perkj <perkj@chromium.org>
Date: Tue Aug 30 10:48:22 2016

Revert of Redirect all mouse input to Alt+Tab window when it's visible, (patchset #3 id:40001 of https://codereview.chromium.org/2284763002/ )

Reason for revert:
WindowCycleControllerTest.MouseCaptureLost fails on Chrome os and Asan.

https://build.chromium.org/p/chromium.chromiumos/builders/Linux%20ChromiumOS%20Tests%20(dbg)(1)

Original issue's description:
> Redirect all mouse input to Alt+Tab window when it's visible,
> effectively disabling the mouse. Capture is reset when the widget is
> destroyed.
>
> BUG= 641171 
>
> Committed: https://crrev.com/c7e292ea58a76fe27c6c247bc640054bcf4cb6aa
> Cr-Commit-Position: refs/heads/master@{#415096}

TBR=sky@chromium.org,estade@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG= 641171 

Review-Url: https://codereview.chromium.org/2294723002
Cr-Commit-Position: refs/heads/master@{#415267}

[modify] https://crrev.com/95797140da851b1078706ae6146cb8062d7498eb/ash/common/wm/window_cycle_list.cc
[modify] https://crrev.com/95797140da851b1078706ae6146cb8062d7498eb/ash/wm/window_cycle_controller_unittest.cc

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/5a1a9aaec662cf0c8bcb24444c180e3fe1456085

commit 5a1a9aaec662cf0c8bcb24444c180e3fe1456085
Author: estade <estade@chromium.org>
Date: Wed Aug 31 21:30:03 2016

Retry c7e292ea58a76fe2 - Redirect all mouse input to Alt+Tab window

Redirect all mouse input to Alt+Tab window when it's visible,
effectively disabling the mouse. Capture is reset when the widget is
destroyed.

original review: https://codereview.chromium.org/2284763002/

BUG= 641171 

Review-Url: https://codereview.chromium.org/2296763002
Cr-Commit-Position: refs/heads/master@{#415761}

[modify] https://crrev.com/5a1a9aaec662cf0c8bcb24444c180e3fe1456085/ash/common/wm/window_cycle_list.cc
[modify] https://crrev.com/5a1a9aaec662cf0c8bcb24444c180e3fe1456085/ash/common/wm/window_cycle_list.h
[modify] https://crrev.com/5a1a9aaec662cf0c8bcb24444c180e3fe1456085/ash/wm/window_cycle_controller_unittest.cc

Your change meets the bar and is auto-approved for M54 (branch: 2840)

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/ac1602cb1fd03af6384e56871f29ac90fe6022cb

commit ac1602cb1fd03af6384e56871f29ac90fe6022cb
Author: Evan Stade <estade@chromium.org>
Date: Thu Sep 01 21:23:53 2016

Retry c7e292ea58a76fe2 - Redirect all mouse input to Alt+Tab window

Redirect all mouse input to Alt+Tab window when it's visible,
effectively disabling the mouse. Capture is reset when the widget is
destroyed.

original review: https://codereview.chromium.org/2284763002/

BUG= 641171 

Review-Url: https://codereview.chromium.org/2296763002
Cr-Commit-Position: refs/heads/master@{#415761}
(cherry picked from commit 5a1a9aaec662cf0c8bcb24444c180e3fe1456085)

Review URL: https://codereview.chromium.org/2303043002 .

Cr-Commit-Position: refs/branch-heads/2840@{#108}
Cr-Branched-From: 1ae106dbab4bddd85132d5b75c670794311f4c57-refs/heads/master@{#414607}

[modify] https://crrev.com/ac1602cb1fd03af6384e56871f29ac90fe6022cb/ash/common/wm/window_cycle_list.cc
[modify] https://crrev.com/ac1602cb1fd03af6384e56871f29ac90fe6022cb/ash/common/wm/window_cycle_list.h
[modify] https://crrev.com/ac1602cb1fd03af6384e56871f29ac90fe6022cb/ash/wm/window_cycle_controller_unittest.cc

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/ac1602cb1fd03af6384e56871f29ac90fe6022cb

commit ac1602cb1fd03af6384e56871f29ac90fe6022cb
Author: Evan Stade <estade@chromium.org>
Date: Thu Sep 01 21:23:53 2016

Retry c7e292ea58a76fe2 - Redirect all mouse input to Alt+Tab window

Redirect all mouse input to Alt+Tab window when it's visible,
effectively disabling the mouse. Capture is reset when the widget is
destroyed.

original review: https://codereview.chromium.org/2284763002/

BUG= 641171 

Review-Url: https://codereview.chromium.org/2296763002
Cr-Commit-Position: refs/heads/master@{#415761}
(cherry picked from commit 5a1a9aaec662cf0c8bcb24444c180e3fe1456085)

Review URL: https://codereview.chromium.org/2303043002 .

Cr-Commit-Position: refs/branch-heads/2840@{#108}
Cr-Branched-From: 1ae106dbab4bddd85132d5b75c670794311f4c57-refs/heads/master@{#414607}

[modify] https://crrev.com/ac1602cb1fd03af6384e56871f29ac90fe6022cb/ash/common/wm/window_cycle_list.cc
[modify] https://crrev.com/ac1602cb1fd03af6384e56871f29ac90fe6022cb/ash/common/wm/window_cycle_list.h
[modify] https://crrev.com/ac1602cb1fd03af6384e56871f29ac90fe6022cb/ash/wm/window_cycle_controller_unittest.cc