exo: Clean up display configuration protocol

exo: Clean up display configuration protocol

The fact that the client only uses the transform and scale factor of the
primary display is an implementation detail, so the protocol was changed
to include this information for each display. The new protocol also does
away with the primary display ID, which can be deduced using the display
bounds now that screen coordinates are used.

BUG=642894
TEST=None

Review-Url: https://codereview.chromium.org/2751653009
Cr-Commit-Position: refs/heads/master@{#457595}
Committed: https://chromium.googlesource.com/chromium/src/+/5f68bcb19b832bb425469aa7e1a362e9a0326181

[Dominik Laskowski, 2017-03-16 20:42:58]

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

[commit-bot: I haz the power, 2017-03-16 20:43:44]

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

[Dominik Laskowski, 2017-03-16 20:45:26]

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

[Dominik Laskowski, 2017-03-16 20:45:26]

PTAL.

[commit-bot: I haz the power, 2017-03-16 21:13:12]

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

[commit-bot: I haz the power, 2017-03-16 21:13:13]

Dry run: This issue passed the CQ dry run.

[reveman, 2017-03-16 22:36:08]

lgtm assuming we haven't actually started using this protocol on the client side
yet

[Dominik Laskowski, 2017-03-16 22:55:51]

The CQ bit was checked by domlaskowski@chromium.org

[commit-bot: I haz the power, 2017-03-16 22:56:29]

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, 2017-03-16 23:04:02]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1489704951686190, "parent_rev":
"f0b084579b083162d6dc49b0ca2c22b44d8c9f0a", "commit_rev":
"5f68bcb19b832bb425469aa7e1a362e9a0326181"}

[commit-bot: I haz the power, 2017-03-16 23:04:44]

Description was changed from

==========
exo: Clean up display configuration protocol

The fact that the client only uses the transform and scale factor of the
primary display is an implementation detail, so the protocol was changed
to include this information for each display. The new protocol also does
away with the primary display ID, which can be deduced using the display
bounds now that screen coordinates are used.

BUG=642894
TEST=None
==========

to

==========
exo: Clean up display configuration protocol

The fact that the client only uses the transform and scale factor of the
primary display is an implementation detail, so the protocol was changed
to include this information for each display. The new protocol also does
away with the primary display ID, which can be deduced using the display
bounds now that screen coordinates are used.

BUG=642894
TEST=None

Review-Url: https://codereview.chromium.org/2751653009
Cr-Commit-Position: refs/heads/master@{#457595}
Committed:
https://chromium.googlesource.com/chromium/src/+/5f68bcb19b832bb425469aa7e1a3...
==========

[commit-bot: I haz the power, 2017-03-16 23:04:45]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/5f68bcb19b832bb425469aa7e1a3...