Enable TouchEvent suppression on scroll for all platforms

Enable TouchEvent suppression on scroll for all platforms

Remove the flag for suppressing TouchEvent forwarding to the renderer while
scrolling, enabling this feature for all platforms. Also remove the
Android-specific implementation of TouchCancel on scroll, instead using the
cross-platform implementation now found in TouchEventQueue.

BUG=240735
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=227090

[jdduke (slow), 2013-10-03 18:29:18]

PTAL for owners.

aelias@: content/browser/renderer_host/input
jam@: content/public/common
tedchoc@: content/public/android

[jam, 2013-10-03 21:27:41]

On 2013/10/03 18:29:18, jdduke wrote:
> PTAL for owners.
> 
> aelias@: content/browser/renderer_host/input
> jam@: content/public/common
lgtm
> tedchoc@: content/public/android

[Ted C, 2013-10-03 21:30:09]

On 2013/10/03 21:27:41, jam wrote:
> On 2013/10/03 18:29:18, jdduke wrote:
> > PTAL for owners.
> > 
> > aelias@: content/browser/renderer_host/input
> > jam@: content/public/common
> lgtm
> > tedchoc@: content/public/android

lgtm - content/public/android

[aelias_OOO_until_Jul13, 2013-10-04 02:58:27]

lgtm

[commit-bot: I haz the power, 2013-10-04 15:15:02]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/jdduke@chromium.org/25552003/27001

[commit-bot: I haz the power, 2013-10-04 21:40:00]

Change committed as 227090