Bug Fix: Crash When Getting Window Icon

Bug Fix: Crash When Getting Window Icon

Crash is reported when doing screen share on hangouts. We found it initiates 
at a place where we try to get image for a null icon handle.

This CL fixes the issue.

BUG=676758
TEST=running screen share on hangouts

Review-Url: https://codereview.chromium.org/2617153002
Cr-Commit-Position: refs/heads/master@{#442015}
Committed: https://chromium.googlesource.com/chromium/src/+/a37268b72ce9073ad0dd298c3576ca1a66832688

[qiangchen, 2017-01-06 18:12:37]

Description was changed from

==========
Fix possible crash when getting window icon

BUG=676758
==========

to

==========
Bug Fix: Crash When Getting Window Icon

Crash is reported when doing screen share on hangouts. We found it initiates 
at a place where we try to get image for a null icon handle.

This CL fixes the issue.

BUG=676758
TEST=running screen share on hangouts
==========

[qiangchen, 2017-01-06 18:12:37]

qiangchen@chromium.org changed reviewers:
+ dalecurtis@chromium.org

[qiangchen, 2017-01-06 18:14:57]

Can you take a look at this quick fix CL?

[DaleCurtis, 2017-01-06 18:36:00]

lgtm

[qiangchen, 2017-01-06 18:48:23]

The CQ bit was checked by qiangchen@chromium.org

[commit-bot: I haz the power, 2017-01-06 18:48:50]

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, 2017-01-06 19:54:55]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1483728503410440, "parent_rev":
"7647e35b78ecf8f6ff9566728d7063760ec65ee4", "commit_rev":
"a37268b72ce9073ad0dd298c3576ca1a66832688"}

[commit-bot: I haz the power, 2017-01-06 19:55:24]

Description was changed from

==========
Bug Fix: Crash When Getting Window Icon

Crash is reported when doing screen share on hangouts. We found it initiates 
at a place where we try to get image for a null icon handle.

This CL fixes the issue.

BUG=676758
TEST=running screen share on hangouts
==========

to

==========
Bug Fix: Crash When Getting Window Icon

Crash is reported when doing screen share on hangouts. We found it initiates 
at a place where we try to get image for a null icon handle.

This CL fixes the issue.

BUG=676758
TEST=running screen share on hangouts

Review-Url: https://codereview.chromium.org/2617153002
Cr-Commit-Position: refs/heads/master@{#442015}
Committed:
https://chromium.googlesource.com/chromium/src/+/a37268b72ce9073ad0dd298c3576...
==========

[commit-bot: I haz the power, 2017-01-06 19:55:25]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/a37268b72ce9073ad0dd298c3576...