[ash-md] Allows ToggleButton to have a border and adds focus rectangle

[ash-md] Allows ToggleButton to have a border and adds focus rectangle

- Allows ToggleButton to accept a border set externally.
- Allows ToggleButton to have a tooltip that includes ThumbView.
- Adds TrayPopupUtils::CreateToggleButton to set up ToggleButtons for
  use in system menu.
- Uses TrayPopupUtils::CreateToggleButton in IME, Bluetooth and Network
  pages.

BUG=652492
TEST=manual
  Bring focus using Tab to a toggle button in Network detailed page.
  (focus rectangle appears).
  Press Space (toggle switches)
  Press Enter (toggle switches)
  Tab (focus switches to the next row).

Review-Url: https://codereview.chromium.org/2506133003
Cr-Commit-Position: refs/heads/master@{#433386}
(cherry picked from commit 9bd7f8c886e2b6131646b78d7598d2115894b385)

Committed: https://chromium.googlesource.com/chromium/src/+/7061f7f5af36c3d2647f7179a4567493a97648d0

[varkha, 2016-11-21 03:38:44]

Description was changed from

==========
[ash-md] Allows ToggleButton to have a border and adds focus rectangle

- Allows ToggleButton to accept a border set externally.
- Allows ToggleButton to have a tooltip that includes ThumbView.
- Adds TrayPopupUtils::CreateToggleButton to set up ToggleButtons for
  use in system menu.
- Uses TrayPopupUtils::CreateToggleButton in IME, Bluetooth and Network
  pages.

BUG=652492
TEST=manual
  Bring focus using Tab to a toggle button in Network detailed page.
  (focus rectangle appears).
  Press Space (toggle switches)
  Press Enter (toggle switches)
  Tab (focus switches to the next row).

Review-Url: https://codereview.chromium.org/2506133003
Cr-Commit-Position: refs/heads/master@{#433386}
(cherry picked from commit 9bd7f8c886e2b6131646b78d7598d2115894b385)
==========

to

==========
[ash-md] Allows ToggleButton to have a border and adds focus rectangle

- Allows ToggleButton to accept a border set externally.
- Allows ToggleButton to have a tooltip that includes ThumbView.
- Adds TrayPopupUtils::CreateToggleButton to set up ToggleButtons for
  use in system menu.
- Uses TrayPopupUtils::CreateToggleButton in IME, Bluetooth and Network
  pages.

BUG=652492
TEST=manual
  Bring focus using Tab to a toggle button in Network detailed page.
  (focus rectangle appears).
  Press Space (toggle switches)
  Press Enter (toggle switches)
  Tab (focus switches to the next row).

Review-Url: https://codereview.chromium.org/2506133003
Cr-Commit-Position: refs/heads/master@{#433386}
(cherry picked from commit 9bd7f8c886e2b6131646b78d7598d2115894b385)

Committed:
https://chromium.googlesource.com/chromium/src/+/7061f7f5af36c3d2647f7179a456...
==========

[varkha, 2016-11-21 03:38:45]

Committed patchset #1 (id:1) manually as
7061f7f5af36c3d2647f7179a4567493a97648d0.