Handle touch accessibility in PageWidgetDelegate instead of WebViewImpl.

Handle touch accessibility in PageWidgetDelegate instead of WebViewImpl.

WebViewImpl::handleInputEvent isn't called for out-of-process iframes.
Move the touch accessibility code to PageWidgetDelegate instead, so that
it's called from both contexts. This is a follow-up to ecrrev.com/2009283002

BUG=613694
Committed: https://crrev.com/2fa74e5fca5dc25616b23ba7d098db48f33e2d90
Cr-Commit-Position: refs/heads/master@{#397356}

[dmazzoni, 2016-06-01 22:30:05]

dmazzoni@chromium.org changed reviewers:
+ dcheng@chromium.org, pdr@chromium.org

[dcheng, 2016-06-01 23:08:00]

lgtm

[dmazzoni, 2016-06-02 07:09:29]

The CQ bit was checked by dmazzoni@chromium.org

[commit-bot: I haz the power, 2016-06-02 07:09:45]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/2036493002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/2036493002/1

[commit-bot: I haz the power, 2016-06-02 10:45:49]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-06-02 10:47:18]

Description was changed from

==========
Handle touch accessibility in PageWidgetDelegate instead of WebViewImpl.

WebViewImpl::handleInputEvent isn't called for out-of-process iframes.
Move the touch accessibility code to PageWidgetDelegate instead, so that
it's called from both contexts. This is a follow-up to ecrrev.com/2009283002

BUG=613694
==========

to

==========
Handle touch accessibility in PageWidgetDelegate instead of WebViewImpl.

WebViewImpl::handleInputEvent isn't called for out-of-process iframes.
Move the touch accessibility code to PageWidgetDelegate instead, so that
it's called from both contexts. This is a follow-up to ecrrev.com/2009283002

BUG=613694

Committed: https://crrev.com/2fa74e5fca5dc25616b23ba7d098db48f33e2d90
Cr-Commit-Position: refs/heads/master@{#397356}
==========

[commit-bot: I haz the power, 2016-06-02 10:47:19]

Patchset 1 (id:??) landed as
https://crrev.com/2fa74e5fca5dc25616b23ba7d098db48f33e2d90
Cr-Commit-Position: refs/heads/master@{#397356}