Make ScrollingStateNodes refcounted, and other minor cleanup
https://bugs.webkit.org/show_bug.cgi?id=134040
Reviewed by Beth Dakin.
Source/WebCore:
Prepare for future scrolling frame gyrations by making
ScrollingStateNodes refcounted.
Rename ScrollingStateNode::removeChild() to removeDescendant()
since that's what it does. Also rename didRemoveNode() to willRemoveNode()
to better match the behavior.
Use 'auto' in more places.
* page/scrolling/AsyncScrollingCoordinator.cpp:
(WebCore::AsyncScrollingCoordinator::syncChildPositions):
* page/scrolling/ScrollingStateFixedNode.cpp:
(WebCore::ScrollingStateFixedNode::create):
(WebCore::ScrollingStateFixedNode::clone):
* page/scrolling/ScrollingStateFixedNode.h:
* page/scrolling/ScrollingStateFrameScrollingNode.cpp:
(WebCore::ScrollingStateFrameScrollingNode::create):
(WebCore::ScrollingStateFrameScrollingNode::clone):
* page/scrolling/ScrollingStateFrameScrollingNode.h:
* page/scrolling/ScrollingStateNode.cpp:
(WebCore::ScrollingStateNode::cloneAndReset):
(WebCore::ScrollingStateNode::appendChild):
(WebCore::ScrollingStateNode::removeDescendant):
(WebCore::ScrollingStateNode::willBeRemovedFromStateTree):
(WebCore::ScrollingStateNode::removeChild): Deleted.
* page/scrolling/ScrollingStateNode.h:
(WebCore::ScrollingStateNode::children):
* page/scrolling/ScrollingStateOverflowScrollingNode.cpp:
(WebCore::ScrollingStateOverflowScrollingNode::create):
(WebCore::ScrollingStateOverflowScrollingNode::clone):
* page/scrolling/ScrollingStateOverflowScrollingNode.h:
* page/scrolling/ScrollingStateStickyNode.cpp:
(WebCore::ScrollingStateStickyNode::create):
(WebCore::ScrollingStateStickyNode::clone):
* page/scrolling/ScrollingStateStickyNode.h:
* page/scrolling/ScrollingStateTree.cpp:
(WebCore::ScrollingStateTree::attachNode):
(WebCore::ScrollingStateTree::removeNode):
(WebCore::ScrollingStateTree::willRemoveNode):
(WebCore::ScrollingStateTree::didRemoveNode): Deleted.
* page/scrolling/ScrollingStateTree.h:
(WebCore::ScrollingStateTree::setRootStateNode):
* page/scrolling/ScrollingTree.cpp:
(WebCore::ScrollingTree::updateTreeFromStateNode):
Source/WebKit2:
* Shared/Scrolling/RemoteScrollingCoordinatorTransaction.cpp:
(WebKit::encodeNodeAndDescendants):
git-svn-id: http://svn.webkit.org/repository/webkit/trunk@170118 268f45cc-cd09-0410-ab3c-d52691b4dbfc
17 files changed
