Fixes coordinates supplied to WindowTreeHost

Fixes coordinates supplied to WindowTreeHost

WindowTreeClient passes the event from the mus to WindowTreeHost. The
coordinates of the event from mus are local to the target
window. WindowTreeHost expects event relative to it's host window. So,
before WindowTreeClient passes the event to WindowTreeHost it needs to
convert.

BUG=659155
TEST=covered by test
R=sadrul@chromium.org

Committed: https://crrev.com/da8533d0a7de36b72879edd0b8ac6728437a2ab0
Cr-Commit-Position: refs/heads/master@{#435440}

[sky, 2016-11-30 21:12:46]

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

[commit-bot: I haz the power, 2016-11-30 21:13:08]

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

[sadrul, 2016-11-30 21:41:29]

lgtm

https://codereview.chromium.org/2533213006/diff/20001/ui/aura/mus/window_tree...
File ui/aura/mus/window_tree_client.cc (right):

https://codereview.chromium.org/2533213006/diff/20001/ui/aura/mus/window_tree...
ui/aura/mus/window_tree_client.cc:1112:
event->AsLocatedEvent()->set_location(host_location);
This should update the root-location too I think?

[sky, 2016-11-30 22:08:24]

The CQ bit was unchecked by sky@chromium.org

[sky, 2016-11-30 22:08:27]

The CQ bit was checked by sky@chromium.org

[commit-bot: I haz the power, 2016-11-30 22:08:36]

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, 2016-11-30 22:13:14]

CQ is committing da patch.

Bot data: {"patchset_id": 20001, "attempt_start_ts": 1480543707562990,
"parent_rev": "a317a0112af5cb424ea5acffb2f3862240e95ffe", "commit_rev":
"70fa5fb78a95e4b08f279b93df673c09e63b1ea4"}

[commit-bot: I haz the power, 2016-11-30 22:13:42]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-11-30 22:18:12]

Description was changed from

==========
Fixes coordinates supplied to WindowTreeHost

WindowTreeClient passes the event from the mus to WindowTreeHost. The
coordinates of the event from mus are local to the target
window. WindowTreeHost expects event relative to it's host window. So,
before WindowTreeClient passes the event to WindowTreeHost it needs to
convert.

BUG=659155
TEST=covered by test
R=sadrul@chromium.org
==========

to

==========
Fixes coordinates supplied to WindowTreeHost

WindowTreeClient passes the event from the mus to WindowTreeHost. The
coordinates of the event from mus are local to the target
window. WindowTreeHost expects event relative to it's host window. So,
before WindowTreeClient passes the event to WindowTreeHost it needs to
convert.

BUG=659155
TEST=covered by test
R=sadrul@chromium.org

Committed: https://crrev.com/da8533d0a7de36b72879edd0b8ac6728437a2ab0
Cr-Commit-Position: refs/heads/master@{#435440}
==========

[commit-bot: I haz the power, 2016-11-30 22:18:13]

Patchset 2 (id:??) landed as
https://crrev.com/da8533d0a7de36b72879edd0b8ac6728437a2ab0
Cr-Commit-Position: refs/heads/master@{#435440}