cc: Damage layer on delegated scroll

cc: Damage layer on delegated scroll

Plumb LTHI::OnRootLayerDelegatedScrollOffsetChanged to the affected
layers and properly set damage on those layers as if they have been
scrolled.

BUG=422061
Committed: https://crrev.com/7d5dbab6a68510344f18d4a8895157172ab5e307
Cr-Commit-Position: refs/heads/master@{#299171}

[boliu, 2014-10-09 22:48:43]

boliu@chromium.org changed reviewers:
+ enne@chromium.org

[boliu, 2014-10-09 22:48:43]

PTAL. Thanks

[enne (OOO), 2014-10-10 18:10:17]

Looks good in general, but just a naming question:

https://codereview.chromium.org/642113004/diff/1/cc/layers/layer_impl.cc
File cc/layers/layer_impl.cc (right):

https://codereview.chromium.org/642113004/diff/1/cc/layers/layer_impl.cc#newc...
cc/layers/layer_impl.cc:1130: OnDelegatedScrollOffsetChanged();
bikeshed: This isn't really just for "delegated" if you call it here.  Also, it
gets called when either delta or offset changes, so it's not just "Offset"
either.  What about DidScroll?

[boliu, 2014-10-10 18:23:11]

https://codereview.chromium.org/642113004/diff/1/cc/layers/layer_impl.cc
File cc/layers/layer_impl.cc (right):

https://codereview.chromium.org/642113004/diff/1/cc/layers/layer_impl.cc#newc...
cc/layers/layer_impl.cc:1130: OnDelegatedScrollOffsetChanged();
On 2014/10/10 18:10:17, enne wrote:
> bikeshed: This isn't really just for "delegated" if you call it here.  Also,
it
> gets called when either delta or offset changes, so it's not just "Offset"
> either.  What about DidScroll?

Sounds good. Done.

[enne (OOO), 2014-10-10 18:23:45]

Thanks, lgtm!

[boliu, 2014-10-10 18:25:35]

The CQ bit was checked by boliu@chromium.org

[commit-bot: I haz the power, 2014-10-10 18:26:36]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/642113004/180001

[commit-bot: I haz the power, 2014-10-10 20:05:57]

Committed patchset #3 (id:180001)

[commit-bot: I haz the power, 2014-10-10 20:07:18]

Patchset 3 (id:??) landed as
https://crrev.com/7d5dbab6a68510344f18d4a8895157172ab5e307
Cr-Commit-Position: refs/heads/master@{#299171}