Move SelectionAdjust to its own file

third_party/WebKit/Source/core/editing/SelectionEditor.cpp

Index: third_party/WebKit/Source/core/editing/SelectionEditor.cpp
diff --git a/third_party/WebKit/Source/core/editing/SelectionEditor.cpp b/third_party/WebKit/Source/core/editing/SelectionEditor.cpp
index fbd247d8673b518839b7918501dded9b9b179955..bc36df3dc1fa2a2e5330d32334f994ed5ed1c740 100644
--- a/third_party/WebKit/Source/core/editing/SelectionEditor.cpp
+++ b/third_party/WebKit/Source/core/editing/SelectionEditor.cpp
@@ -27,6 +27,7 @@
 
 #include "core/editing/EditingUtilities.h"
 #include "core/editing/Editor.h"
+#include "core/editing/SelectionAdjuster.h"
 #include "core/events/Event.h"
 #include "core/frame/LocalFrame.h"
 #include "core/frame/Settings.h"
@@ -97,83 +98,6 @@ void SelectionEditor::setVisibleSelection(const VisibleSelectionInComposedTree&
     SelectionAdjuster::adjustSelectionInDOMTree(&m_selection, m_selectionInComposedTree);
 }
 
-// TODO(yosin): We should move
-// |SelectionAdjuster::adjustSelectionInComposedTree()| to
-// "SelectionAdjuster.cpp"
-// Updates |selectionInComposedTree| to match with |selection|.
-void SelectionAdjuster::adjustSelectionInComposedTree(VisibleSelectionInComposedTree* selectionInComposedTree, const VisibleSelection& selection)
-{
-    if (selection.isNone()) {
-        *selectionInComposedTree = VisibleSelectionInComposedTree();
-        return;
-    }
-
-    const PositionInComposedTree& base = toPositionInComposedTree(selection.base());
-    const PositionInComposedTree& extent = toPositionInComposedTree(selection.extent());
-    const PositionInComposedTree& position1 = toPositionInComposedTree(selection.start());
-    const PositionInComposedTree& position2 = toPositionInComposedTree(selection.end());
-    position1.anchorNode()->updateDistribution();
-    position2.anchorNode()->updateDistribution();
-    selectionInComposedTree->m_base = base;
-    selectionInComposedTree->m_extent = extent;
-    selectionInComposedTree->m_affinity = selection.m_affinity;
-    selectionInComposedTree->m_isDirectional = selection.m_isDirectional;
-    selectionInComposedTree->m_baseIsFirst = base.isNull() || base.compareTo(extent) <= 0;
-    if (position1.compareTo(position2) <= 0) {
-        selectionInComposedTree->m_start = position1;
-        selectionInComposedTree->m_end = position2;
-    } else {
-        selectionInComposedTree->m_start = position2;
-        selectionInComposedTree->m_end = position1;
-    }
-    selectionInComposedTree->updateSelectionType();
-}
-
-static bool isCrossingShadowBoundaries(const VisibleSelectionInComposedTree& selection)
-{
-    if (!selection.isRange())
-        return false;
-    TreeScope& treeScope = selection.base().anchorNode()->treeScope();
-    return selection.extent().anchorNode()->treeScope() != treeScope
-        || selection.start().anchorNode()->treeScope() != treeScope
-        || selection.end().anchorNode()->treeScope() != treeScope;
-}
-
-// TODO(yosin): We should move
-// |SelectionAdjuster::adjustSelectionInDOMTree()| to
-// "SelectionAdjuster.cpp"
-void SelectionAdjuster::adjustSelectionInDOMTree(VisibleSelection* selection, const VisibleSelectionInComposedTree& selectionInComposedTree)
-{
-    if (selectionInComposedTree.isNone()) {
-        *selection = VisibleSelection();
-        return;
-    }
-
-    const Position& base = toPositionInDOMTree(selectionInComposedTree.base());
-    const Position& extent = toPositionInDOMTree(selectionInComposedTree.extent());
-
-    if (isCrossingShadowBoundaries(selectionInComposedTree)) {
-        *selection = VisibleSelection(base, extent);
-        return;
-    }
-
-    const Position& position1 = toPositionInDOMTree(selectionInComposedTree.start());
-    const Position& position2 = toPositionInDOMTree(selectionInComposedTree.end());
-    selection->m_base = base;
-    selection->m_extent = extent;
-    selection->m_affinity = selectionInComposedTree.m_affinity;
-    selection->m_isDirectional = selectionInComposedTree.m_isDirectional;
-    selection->m_baseIsFirst = base.isNull() || base.compareTo(extent) <= 0;
-    if (position1.compareTo(position2) <= 0) {
-        selection->m_start = position1;
-        selection->m_end = position2;
-    } else {
-        selection->m_start = position2;
-        selection->m_end = position1;
-    }
-    selection->updateSelectionType();
-}
-
 void SelectionEditor::resetXPosForVerticalArrowNavigation()
 {
     m_xPosForVerticalArrowNavigation = NoXPosForVerticalArrowNavigation();