DescriptionStop retrieving scrolling element id from the CompositorElementId.
Instead, store it locally. This is possible because ScrollState is the only
way to set current_native_scrolling_element on cc::ScrollStateData. Furthermore,
ScrollState is a garbage-collected, script-observable class, so referencing
Element from it is safe.
Also note that ScrollState is part of an unlaunched feature.
BUG=718564
Review-Url: https://codereview.chromium.org/2881423004
Cr-Commit-Position: refs/heads/master@{#472826}
Committed: https://chromium.googlesource.com/chromium/src/+/1713618a7ed0036cb64f87a096a94f43a6a8761e
Patch Set 1 #Patch Set 2 : none #Patch Set 3 : none #
Total comments: 1
Patch Set 4 : none #
Total comments: 1
Patch Set 5 : Merge branch 'master' into scrollstate #
Dependent Patchsets: Messages
Total messages: 36 (23 generated)
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