Tentative fix for scroll event related crashes on the NTP

Tentative fix for scroll event related crashes on the NTP

A crash[1] seems to be caused by events attempting to get data from
the NTP while it is not the current page anymore. This CL adds
a check to ensure the page processing the events is the currently
displayed NTP.

[1]: https://crbug.com/649670#c17

BUG=649670
Review-Url: https://codereview.chromium.org/2400163002
Cr-Commit-Position: refs/heads/master@{#423858}
(cherry picked from commit 83034cc5fb53f6d66f73f3a8afbfdd0d14b42943)

Committed: https://chromium.googlesource.com/chromium/src/+/5d06125ffec380d152ac244963fc2b154ed109da

[Marc Treib, 2016-10-12 16:10:14]

Description was changed from

==========
Tentative fix for scroll event related crashes on the NTP

A crash[1] seems to be caused by events attempting to get data from
the NTP while it is not the current page anymore. This CL adds
a check to ensure the page processing the events is the currently
displayed NTP.

[1]: https://crbug.com/649670#c17

BUG=649670

Review-Url: https://codereview.chromium.org/2400163002
Cr-Commit-Position: refs/heads/master@{#423858}
(cherry picked from commit 83034cc5fb53f6d66f73f3a8afbfdd0d14b42943)
==========

to

==========
Tentative fix for scroll event related crashes on the NTP

A crash[1] seems to be caused by events attempting to get data from
the NTP while it is not the current page anymore. This CL adds
a check to ensure the page processing the events is the currently
displayed NTP.

[1]: https://crbug.com/649670#c17

BUG=649670

Review-Url: https://codereview.chromium.org/2400163002
Cr-Commit-Position: refs/heads/master@{#423858}
(cherry picked from commit 83034cc5fb53f6d66f73f3a8afbfdd0d14b42943)

Committed:
https://chromium.googlesource.com/chromium/src/+/5d06125ffec380d152ac244963fc...
==========

[Marc Treib, 2016-10-12 16:10:16]

Committed patchset #1 (id:1) manually as
5d06125ffec380d152ac244963fc2b154ed109da.