[Refactoring] Remove TreeScopeAdjuster

[Refactoring] Remove TreeScopeAdjuster
https://bugs.webkit.org/show_bug.cgi?id=86599

Reviewed by Hajime Morita.

It seems the right place of the method of TreeScopeAdjuster are in VisibleSelection
and TreeScope. So we can remove TreeScopeAdjuster.

No new tests, no change in behavior.

* CMakeLists.txt:
* GNUmakefile.list.am:
* Target.pri:
* WebCore.gypi:
* WebCore.vcproj/WebCore.vcproj:
* WebCore.xcodeproj/project.pbxproj:
* dom/DOMAllInOne.cpp:
* dom/TreeScope.cpp:
(WebCore::TreeScope::ancestorInThisScope):
(WebCore):
* dom/TreeScope.h:
(TreeScope):
* dom/TreeScopeAdjuster.cpp: Removed.
* dom/TreeScopeAdjuster.h: Removed.
* editing/VisibleSelection.cpp:
(WebCore::VisibleSelection::adjustPositionBefore):
(WebCore):
(WebCore::VisibleSelection::adjustPositionAfter):
(WebCore::VisibleSelection::adjustSelectionToAvoidCrossingShadowBoundaries):
* editing/VisibleSelection.h:
(VisibleSelection):
* page/DOMSelection.cpp:
(WebCore::DOMSelection::shadowAdjustedNode):
(WebCore::DOMSelection::shadowAdjustedOffset):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@117420 268f45cc-cd09-0410-ab3c-d52691b4dbfc