ash: Allow web pages to use the Ctrl-M minimize shortcut

ash: Allow web pages to use the Ctrl-M minimize shortcut

The active window is minimized only if the active web page or app does not
handle the key first.

BUG=284522
TEST=manual, ash_unittests AcceleratorCommandsTest.*

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=221294

[James Cook, 2013-09-04 17:58:06]

sky, PTAL

And thanks for your advice this morning.

https://codereview.chromium.org/23611005/diff/1/ash/accelerators/accelerator_...
File ash/accelerators/accelerator_commands.h (right):

https://codereview.chromium.org/23611005/diff/1/ash/accelerators/accelerator_...
ash/accelerators/accelerator_commands.h:1: // Copyright 2013 The Chromium
Authors. All rights reserved.
I introduced this file because accelerator_controller.cc is becoming polluted
with lots of command implementation functions (and
accelerator_controller_unittests.cc with their tests).

Also, it felt weird to expose this command in accelerator_controller.h, but it
doesn't really fit in window_utils.h either.

If you think creating this file is an OK idea I'll move more of the accelerator
implementation functions over in a later CL.

[sky, 2013-09-04 20:26:39]

LGTM

[commit-bot: I haz the power, 2013-09-04 20:28:34]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/jamescook@chromium.org/23611005/1

[commit-bot: I haz the power, 2013-09-04 23:31:35]

Change committed as 221294