X11: Cancel delayed resize task on manual resize

X11: Cancel delayed resize task on manual resize

This fixes a race condition where:
1. We get a ConfigureNotify event that tells us the window was resized
   and as a result post a delayed resize task
2. The window is resized
3. The delayed resize task runs and resizes the window to the old size

The symptom experienced by this bug could be seen with tooltips which
reuse the same window for each tooltip.  If a window was resized to be
larger, we would only render in the smaller area and garbage data
would fill the rest.

BUG=442111
Committed: https://crrev.com/7c6709e2148bd43c2f77396606a94fb6e0f8e78c
Cr-Commit-Position: refs/heads/master@{#406043}

[Tom (Use chromium acct), 2016-07-14 21:03:55]

The CQ bit was checked by thomasanderson@google.com to run a CQ dry run

[commit-bot: I haz the power, 2016-07-14 21:04:47]

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

[Tom (Use chromium acct), 2016-07-14 21:05:53]

thomasanderson@google.com changed reviewers:
+ erg@chromium.org

[commit-bot: I haz the power, 2016-07-14 22:28:07]

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

[commit-bot: I haz the power, 2016-07-14 22:28:10]

Dry run: This issue passed the CQ dry run.

[Elliot Glaysher, 2016-07-18 17:27:14]

lgtm

[Tom (Use chromium acct), 2016-07-18 17:40:21]

The CQ bit was checked by thomasanderson@google.com

[commit-bot: I haz the power, 2016-07-18 17:41:21]

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, 2016-07-18 18:30:27]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-07-18 18:30:44]

CQ bit was unchecked.

[commit-bot: I haz the power, 2016-07-18 18:33:51]

Description was changed from

==========
X11: Cancel delayed resize task on manual resize

This fixes a race condition where:
1. We get a ConfigureNotify event that tells us the window was resized
   and as a result post a delayed resize task
2. The window is resized
3. The delayed resize task runs and resizes the window to the old size

The symptom experienced by this bug could be seen with tooltips which
reuse the same window for each tooltip.  If a window was resized to be
larger, we would only render in the smaller area and garbage data
would fill the rest.

BUG=442111
==========

to

==========
X11: Cancel delayed resize task on manual resize

This fixes a race condition where:
1. We get a ConfigureNotify event that tells us the window was resized
   and as a result post a delayed resize task
2. The window is resized
3. The delayed resize task runs and resizes the window to the old size

The symptom experienced by this bug could be seen with tooltips which
reuse the same window for each tooltip.  If a window was resized to be
larger, we would only render in the smaller area and garbage data
would fill the rest.

BUG=442111

Committed: https://crrev.com/7c6709e2148bd43c2f77396606a94fb6e0f8e78c
Cr-Commit-Position: refs/heads/master@{#406043}
==========

[commit-bot: I haz the power, 2016-07-18 18:33:52]

Patchset 1 (id:??) landed as
https://crrev.com/7c6709e2148bd43c2f77396606a94fb6e0f8e78c
Cr-Commit-Position: refs/heads/master@{#406043}