Fix crash when we don't have a plane to display

Fix crash when we don't have a plane to display

BUG=434115, 438835
Committed: https://crrev.com/208e6bf151685abc68ac836db5afb3543d8a1e92
Cr-Commit-Position: refs/heads/master@{#308105}

[achaulk, 2014-12-08 16:55:43]

achaulk@chromium.org changed reviewers:
+ dnicoara@chromium.org

[achaulk, 2014-12-08 16:55:43]

This will fix the crash, but not the underlying issue of not getting a plane for
a swap

[dnicoara, 2014-12-08 17:00:20]

lgtm

Do you know why we're not getting a plane? I thought that there should always be
a plane (I'm worried that this fix covers an issue in Chromium).

[achaulk, 2014-12-08 17:11:06]

On 2014/12/08 17:00:20, dnicoara wrote:
> lgtm
> 
> Do you know why we're not getting a plane? I thought that there should always
be
> a plane (I'm worried that this fix covers an issue in Chromium).

Nope. All the crashes have surfaceless on, so I would assume one of
1) The GL context isn't forwarding the overlay call, but is the Swap for some
reason
2) GLES2DecoderImpl::HandleScheduleOverlayPlaneCHROMIUM is failing - basically
the texture being used is bad
3) Something else is calling swap

[achaulk, 2014-12-12 16:11:50]

The CQ bit was checked by achaulk@chromium.org

[commit-bot: I haz the power, 2014-12-12 16:12:51]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/779173007/20001

[commit-bot: I haz the power, 2014-12-12 17:05:31]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2014-12-12 17:06:03]

Patchset 2 (id:??) landed as
https://crrev.com/208e6bf151685abc68ac836db5afb3543d8a1e92
Cr-Commit-Position: refs/heads/master@{#308105}

[Andre, 2014-12-12 17:34:50]

andresantoso@chromium.org changed reviewers:
+ andresantoso@chromium.org

[Andre, 2014-12-12 17:34:50]

Looks like this broke
http://build.chromium.org/p/chromium.chromiumos/builders/Linux%20ChromiumOS%2...

[Andre, 2014-12-12 17:48:25]

A revert of this CL (patchset #2 id:20001) has been created in
https://codereview.chromium.org/800053002/ by andresantoso@chromium.org.

The reason for reverting is: Broke Linux ChromiumOS Ozone.
http://build.chromium.org/p/chromium.chromiumos/builders/Linux%20ChromiumOS%2...

GetPrimaryPlane was changed to return a pointer, but a callsite was
not modified.
.