Add ScrollTree::FindNodeFromElementId

Add ScrollTree::FindNodeFromElementId

The transform tree and effect trees both have this function and the
scroll tree feels left out. This patch adds FindNodeFromElementId to
the scroll tree and uses it in LayerTreeImpl::PushPropertiesTo. A
future patch will add more callers.

BUG=693740
CQ_INCLUDE_TRYBOTS=master.tryserver.blink:linux_trusty_blink_rel;master.tryserver.chromium.linux:linux_layout_tests_slimming_paint_v2

Review-Url: https://codereview.chromium.org/2832743002
Cr-Commit-Position: refs/heads/master@{#466087}
Committed: https://chromium.googlesource.com/chromium/src/+/7868a2fd251dc273fedd774f50a3b06fb8d81f9c

[pdr., 2017-04-20 03:14:17]

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

[pdr., 2017-04-20 03:14:20]

The CQ bit was checked by pdr@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2017-04-20 03:14:35]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2017-04-20 04:19:28]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2017-04-20 04:19:29]

Dry run: This issue passed the CQ dry run.

[pdr., 2017-04-20 16:15:59]

The CQ bit was checked by pdr@chromium.org

[pdr., 2017-04-20 16:16:01]

The CQ bit was unchecked by pdr@chromium.org

[enne (OOO), 2017-04-20 18:42:11]

lgtm

[pdr., 2017-04-20 18:42:38]

The CQ bit was checked by pdr@chromium.org

[commit-bot: I haz the power, 2017-04-20 18:43:10]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2017-04-20 19:04:26]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1492713758759070, "parent_rev":
"91a736187fa69343ba4d2fd1e76e9bbbe101d114", "commit_rev":
"7868a2fd251dc273fedd774f50a3b06fb8d81f9c"}

[commit-bot: I haz the power, 2017-04-20 19:04:34]

Description was changed from

==========
Add ScrollTree::FindNodeFromElementId

The transform tree and effect trees both have this function and the
scroll tree feels left out. This patch adds FindNodeFromElementId to
the scroll tree and uses it in LayerTreeImpl::PushPropertiesTo. A
future patch will add more callers.

BUG=693740
CQ_INCLUDE_TRYBOTS=master.tryserver.blink:linux_trusty_blink_rel;master.tryserver.chromium.linux:linux_layout_tests_slimming_paint_v2
==========

to

==========
Add ScrollTree::FindNodeFromElementId

The transform tree and effect trees both have this function and the
scroll tree feels left out. This patch adds FindNodeFromElementId to
the scroll tree and uses it in LayerTreeImpl::PushPropertiesTo. A
future patch will add more callers.

BUG=693740
CQ_INCLUDE_TRYBOTS=master.tryserver.blink:linux_trusty_blink_rel;master.tryserver.chromium.linux:linux_layout_tests_slimming_paint_v2

Review-Url: https://codereview.chromium.org/2832743002
Cr-Commit-Position: refs/heads/master@{#466087}
Committed:
https://chromium.googlesource.com/chromium/src/+/7868a2fd251dc273fedd774f50a3...
==========

[commit-bot: I haz the power, 2017-04-20 19:04:35]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/7868a2fd251dc273fedd774f50a3...