Use VisibleSelection::InDOMTree::equalSelections() instead of operator==()

Source/core/editing/Editor.cpp

Index: Source/core/editing/Editor.cpp
diff --git a/Source/core/editing/Editor.cpp b/Source/core/editing/Editor.cpp
index 9c8d5c782a89505c02842fd7d0d80745a24bce75..272259e810ca9bb07fe45001791218e6f3edbf6f 100644
--- a/Source/core/editing/Editor.cpp
+++ b/Source/core/editing/Editor.cpp
@@ -1042,7 +1042,7 @@ void Editor::transpose()
     String transposed = text.right(1) + text.left(1);
 
     // Select the two characters.
-    if (newSelection != frame().selection().selection())
+    if (!VisibleSelection::InDOMTree::equalSelections(newSelection, frame().selection().selection()))
         frame().selection().setSelection(newSelection);
 
     // Insert the transposed characters.
@@ -1069,7 +1069,7 @@ void Editor::changeSelectionAfterCommand(const VisibleSelection& newSelection,
         return;
 
     // See <rdar://problem/5729315> Some shouldChangeSelectedDOMRange contain Ranges for selections that are no longer valid
-    bool selectionDidNotChangeDOMPosition = newSelection == frame().selection().selection();
+    bool selectionDidNotChangeDOMPosition = VisibleSelection::InDOMTree::equalSelections(newSelection, frame().selection().selection());
     frame().selection().setSelection(newSelection, options);
 
     // Some editing operations change the selection visually without affecting its position within the DOM.