exo: Convert widget bounds to screen coordinates

exo: Convert widget bounds to screen coordinates

Since widget bounds were updated using coordinates relative to the root
window, windows on secondary displays would snap back to the primary
display after resizing.

BUG=631136
TEST=Drag weston-terminal to secondary display and resize.
TEST=ARC apps can still be dragged and maximized.

Committed: https://crrev.com/51b855c765c5da89dad5ee3af9b0e138f7b75d08
Cr-Commit-Position: refs/heads/master@{#407646}

[Dominik Laskowski, 2016-07-25 19:07:35]

The CQ bit was checked by domlaskowski@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2016-07-25 19:08:09]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[Dominik Laskowski, 2016-07-25 19:14:13]

domlaskowski@chromium.org changed reviewers:
+ oshima@chromium.org, reveman@chromium.org

[commit-bot: I haz the power, 2016-07-25 19:45:30]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2016-07-25 19:45:31]

Dry run: This issue passed the CQ dry run.

[reveman, 2016-07-25 20:19:18]

Doesn't this break when the root window is transformed? For example when using
non-default resolution.

[Dominik Laskowski, 2016-07-25 22:35:46]

On 2016/07/25 20:19:18, reveman wrote:
> Doesn't this break when the root window is transformed? For example when using
> non-default resolution.

Internally, Widget::SetBounds converts from screen coordinates to the local
coordinates of the matching display before calling Window::SetBounds, which
delegates to a LayoutManager that constrains child windows within the local root
window. This is equivalent to the single display case, so transformations should
be handled properly.

I've tested changes in resolution, orientation, display layout, and TV
alignment.

[reveman, 2016-07-25 23:09:47]

lgtm

[Dominik Laskowski, 2016-07-26 00:09:59]

The CQ bit was checked by domlaskowski@chromium.org

[commit-bot: I haz the power, 2016-07-26 00:10:33]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-07-26 00:15:08]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-07-26 00:19:37]

Description was changed from

==========
exo: Convert widget bounds to screen coordinates

Since widget bounds were updated using coordinates relative to the root
window, windows on secondary displays would snap back to the primary
display after resizing.

BUG=631136
TEST=Drag weston-terminal to secondary display and resize.
TEST=ARC apps can still be dragged and maximized.
==========

to

==========
exo: Convert widget bounds to screen coordinates

Since widget bounds were updated using coordinates relative to the root
window, windows on secondary displays would snap back to the primary
display after resizing.

BUG=631136
TEST=Drag weston-terminal to secondary display and resize.
TEST=ARC apps can still be dragged and maximized.

Committed: https://crrev.com/51b855c765c5da89dad5ee3af9b0e138f7b75d08
Cr-Commit-Position: refs/heads/master@{#407646}
==========

[commit-bot: I haz the power, 2016-07-26 00:19:38]

Patchset 1 (id:??) landed as
https://crrev.com/51b855c765c5da89dad5ee3af9b0e138f7b75d08
Cr-Commit-Position: refs/heads/master@{#407646}