Tell the root layer it has a wheel handler when a select is active

Tell the root layer it has a wheel handler when a select is open

Otherwise, the input events are handled in
content::InputHandlerProxy::HandleInputEvent and not forwarded to the
renderer, so the select popup is not closed when wheeling over the main
content.

R=jamesr@chromium.org
BUG=294506
Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=158148

[jamesr, 2013-09-20 18:04:10]

https://codereview.chromium.org/23677012/diff/1/Source/web/WebViewImpl.cpp
File Source/web/WebViewImpl.cpp (right):

https://codereview.chromium.org/23677012/diff/1/Source/web/WebViewImpl.cpp#ne...
Source/web/WebViewImpl.cpp:1543: m_rootLayer->setHaveWheelEventHandlers(false);
what if the root layer actually had wheel event handlers before the popup
opened?  i think you need to save the bit off in popupOpened()

[scottmg, 2013-09-20 18:32:01]

Thanks, using WheelController seems best so that it doesn't collide with
scrollable areas changing.

[jamesr, 2013-09-20 18:33:57]

lgtm

[commit-bot: I haz the power, 2013-09-20 18:49:32]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/scottmg@chromium.org/23677012/1002

[commit-bot: I haz the power, 2013-09-21 01:44:51]

Change committed as 158148