Fix integer overflow in FrameView::m_visuallyNonEmptyPixelCount

Fix integer overflow in FrameView::m_visuallyNonEmptyPixelCount

BUG=634819
Committed: https://crrev.com/18614431f3b09bf247aaaece45839a1739affc01
Cr-Commit-Position: refs/heads/master@{#410380}

[hiroshige, 2016-08-05 14:22:58]

hiroshige@chromium.org changed reviewers:
+ bokan@chromium.org

[hiroshige, 2016-08-05 14:22:59]

bokan@, could you take a look as a core/frame OWNER?

[bokan, 2016-08-08 15:27:54]

Sorry for the delay. lgtm.

[bokan, 2016-08-08 15:29:50]

The CQ bit was checked by bokan@chromium.org

[commit-bot: I haz the power, 2016-08-08 15:30:15]

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, 2016-08-08 16:37:02]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-08-08 16:39:19]

Description was changed from

==========
Fix integer overflow in FrameView::m_visuallyNonEmptyPixelCount

BUG=634819
==========

to

==========
Fix integer overflow in FrameView::m_visuallyNonEmptyPixelCount

BUG=634819

Committed: https://crrev.com/18614431f3b09bf247aaaece45839a1739affc01
Cr-Commit-Position: refs/heads/master@{#410380}
==========

[commit-bot: I haz the power, 2016-08-08 16:39:20]

Patchset 1 (id:??) landed as
https://crrev.com/18614431f3b09bf247aaaece45839a1739affc01
Cr-Commit-Position: refs/heads/master@{#410380}

[esprehn, 2016-08-08 20:01:51]

Please add a test for this or revert it. :)

[bokan, 2016-08-08 20:03:13]

My bad, should have thought to ask for one.

[hiroshige, 2016-08-09 08:57:44]

On 2016/08/08 20:03:13, bokan wrote:
> My bad, should have thought to ask for one.

Added an unit test: https://codereview.chromium.org/2229753002/.