Disables docked windows by default in M33

Disables docked windows by default in M33

BUG=None
TEST=Visual
1. in chrome://flags verify that ash-disable-docked-windows is absent.
2. in chrome://flags verify that ash-enable-docked-windows is present.
3. When running chrome without ash-enable-docked-windows it should not be possible to dock a window at a screen edge.
TEST=ash_unittests --gtest_filter=*Dock*

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=240475

[varkha, 2013-12-09 16:40:09]

sky@, I am planning to land this close to the end of this week and then revert
after the branch point. Could you please take a look?

[sky, 2013-12-09 17:03:08]

LGTM

https://codereview.chromium.org/109663002/diff/1/ash/ash_switches.cc
File ash/ash_switches.cc (right):

https://codereview.chromium.org/109663002/diff/1/ash/ash_switches.cc#newcode97
ash/ash_switches.cc:97: const char kAshEnableDockedWindows[] =
"ash-enable-docked-windows";
Move this to match position in header.

[commit-bot: I haz the power, 2013-12-12 20:58:51]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/varkha@chromium.org/109663002/1

[commit-bot: I haz the power, 2013-12-12 23:31:25]

Change committed as 240475