Remove the swizzling of -[NSEvent window] and the middle button in EventsMacTest

Remove the swizzling of -[NSEvent window] and the middle button in EventsMacTest

The NSEvent initializers for creating test events are limited, so we
currently swizzle some properties. In a follow-up, we also want test
events that include phase information for scrolling. The swizzling for that
was becoming complex, but we can replace the swizzling by making more
use of CGEventSetIntegerValueField(..) and adding a tiny bit of reflection.

BUG=615948
TEST=events_unittests still passing

Committed: https://crrev.com/033117f328bb004ae5f466351734f175d07ab5c7
Cr-Commit-Position: refs/heads/master@{#409718}

[tapted, 2016-08-04 01:15:09]

The CQ bit was checked by tapted@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2016-08-04 01:15:41]

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

[tapted, 2016-08-04 01:17:12]

The CQ bit was checked by tapted@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2016-08-04 01:17:35]

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

[tapted, 2016-08-04 01:25:04]

The CQ bit was unchecked by tapted@chromium.org

[tapted, 2016-08-04 01:40:22]

Patchset #2 (id:20001) has been deleted

[tapted, 2016-08-04 01:41:50]

tapted@chromium.org changed reviewers:
+ avi@chromium.org

[tapted, 2016-08-04 01:41:51]

Hi avi, please take a look

[Avi (use Gerrit), 2016-08-04 04:25:33]

lgtm

If it works, ship it!

[tapted, 2016-08-04 04:32:11]

thanks!

[tapted, 2016-08-04 04:32:22]

The CQ bit was checked by tapted@chromium.org

[commit-bot: I haz the power, 2016-08-04 04:32:42]

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, 2016-08-04 04:35:58]

Committed patchset #2 (id:40001)

[commit-bot: I haz the power, 2016-08-04 04:37:55]

Description was changed from

==========
Remove the swizzling of -[NSEvent window] and the middle button in EventsMacTest

The NSEvent initializers for creating test events are limited, so we
currently swizzle some properties. In a follow-up, we also want test
events that include phase information for scrolling. The swizzling for that
was becoming complex, but we can replace the swizzling by making more
use of CGEventSetIntegerValueField(..) and adding a tiny bit of reflection.

BUG=615948
TEST=events_unittests still passing
==========

to

==========
Remove the swizzling of -[NSEvent window] and the middle button in EventsMacTest

The NSEvent initializers for creating test events are limited, so we
currently swizzle some properties. In a follow-up, we also want test
events that include phase information for scrolling. The swizzling for that
was becoming complex, but we can replace the swizzling by making more
use of CGEventSetIntegerValueField(..) and adding a tiny bit of reflection.

BUG=615948
TEST=events_unittests still passing

Committed: https://crrev.com/033117f328bb004ae5f466351734f175d07ab5c7
Cr-Commit-Position: refs/heads/master@{#409718}
==========

[commit-bot: I haz the power, 2016-08-04 04:37:56]

Patchset 2 (id:??) landed as
https://crrev.com/033117f328bb004ae5f466351734f175d07ab5c7
Cr-Commit-Position: refs/heads/master@{#409718}