Prevent orthogonal fling accumulation

Prevent orthogonal fling accumulation

Tighten the directional comparison for fling accumulation, preventing
perfectly orthogonal flings from accumulating. Also adjust Android's
ContentViewScrollingTest#testFling integration test to scale the
fling by the device scale factor, ensuring consistent results all
all displays.

BUG=406848
Committed: https://crrev.com/1b241325584a8612ff035c809ecfdeefa08063c5
Cr-Commit-Position: refs/heads/master@{#296507}

[jdduke (slow), 2014-09-24 19:03:43]

Patchset #2 (id:20001) has been deleted

[jdduke (slow), 2014-09-24 19:03:51]

Patchset #1 (id:1) has been deleted

[jdduke (slow), 2014-09-24 19:08:18]

Patchset #2 (id:60001) has been deleted

[jdduke (slow), 2014-09-24 19:09:20]

jdduke@chromium.org changed reviewers:
+ aelias@chromium.org

[jdduke (slow), 2014-09-24 19:09:21]

aelias@: PTAL, thanks.

[aelias_OOO_until_Jul13, 2014-09-24 19:21:53]

lgtm except, <= is nonstrict inequality so your patch description seems
misleading.

[jdduke (slow), 2014-09-24 19:23:18]

On 2014/09/24 19:21:53, aelias wrote:
> lgtm except, <= is nonstrict inequality so your patch description seems
> misleading.

Well, strict in the angular sense (<90 degrees), but you're right that the
description is rather misleading.

[jdduke (slow), 2014-09-24 19:24:42]

The CQ bit was checked by jdduke@chromium.org

[commit-bot: I haz the power, 2014-09-24 19:25:31]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/602873002/80001

[commit-bot: I haz the power, 2014-09-24 20:24:59]

Committed patchset #2 (id:80001) as 08bd397beeabad0dbcd276a920466fa4af4f871b

[commit-bot: I haz the power, 2014-09-24 20:25:33]

Patchset 2 (id:??) landed as
https://crrev.com/1b241325584a8612ff035c809ecfdeefa08063c5
Cr-Commit-Position: refs/heads/master@{#296507}