Fix runtime setting forcing passive event listeners to scroll blocking events.

Fix runtime setting forcing passive event listeners to scroll blocking events.

Previously the runtime settings would apply to all events; make it
restricted to scroll blocking events.

Also adjust the blockedEventsWarning threshold to use this same event
type (it was previously reporting touchend as well; which it shouldn't
have)

BUG=599611
Review-Url: https://codereview.chromium.org/2024913002
Cr-Commit-Position: refs/heads/master@{#396855}
(cherry picked from commit b38d8cc6524ed76a371abb851f97e534aab04926)

Committed: https://chromium.googlesource.com/chromium/src/+/244b55720606f9fccf929f4d3146972426f56e19

[dtapuska, 2016-06-03 13:19:48]

Description was changed from

==========
Fix runtime setting forcing passive event listeners to scroll blocking events.

Previously the runtime settings would apply to all events; make it
restricted to scroll blocking events.

Also adjust the blockedEventsWarning threshold to use this same event
type (it was previously reporting touchend as well; which it shouldn't
have)

BUG=599611

Review-Url: https://codereview.chromium.org/2024913002
Cr-Commit-Position: refs/heads/master@{#396855}
(cherry picked from commit b38d8cc6524ed76a371abb851f97e534aab04926)
==========

to

==========
Fix runtime setting forcing passive event listeners to scroll blocking events.

Previously the runtime settings would apply to all events; make it
restricted to scroll blocking events.

Also adjust the blockedEventsWarning threshold to use this same event
type (it was previously reporting touchend as well; which it shouldn't
have)

BUG=599611

Review-Url: https://codereview.chromium.org/2024913002
Cr-Commit-Position: refs/heads/master@{#396855}
(cherry picked from commit b38d8cc6524ed76a371abb851f97e534aab04926)

Committed:
https://chromium.googlesource.com/chromium/src/+/244b55720606f9fccf929f4d3146...
==========

[dtapuska, 2016-06-03 13:19:49]

Committed patchset #1 (id:1) manually as
244b55720606f9fccf929f4d3146972426f56e19.