Change a FrameSelection::setSelectedRange argument type from bool to enum.

Source/core/editing/FrameSelection.h

Index: Source/core/editing/FrameSelection.h
diff --git a/Source/core/editing/FrameSelection.h b/Source/core/editing/FrameSelection.h
index c59a5d0fe133cbed33bbcc094ec6cebbfaa65cef..c3555ae8cbed90fd7a02ff0c86c5000c4757b62d 100644
--- a/Source/core/editing/FrameSelection.h
+++ b/Source/core/editing/FrameSelection.h
@@ -85,6 +85,11 @@ public:
         return static_cast<EUserTriggered>(options & UserTriggered);
     }
 
+    enum DirectoinalOption {
+        NonDirectional,
+        Directional
+    };
+
     Element* rootEditableElement() const { return m_selection.rootEditableElement(); }
     Element* rootEditableElementOrDocumentElement() const;
     Node* rootEditableElementOrTreeScopeRootNode() const;
@@ -100,7 +105,7 @@ public:
     const VisibleSelection& selection() const { return m_selection; }
     void setSelection(const VisibleSelection&, SetSelectionOptions = CloseTyping | ClearTypingStyle, CursorAlignOnScroll = AlignCursorOnScrollIfNeeded, TextGranularity = CharacterGranularity);
     void setSelection(const VisibleSelection& selection, TextGranularity granularity) { setSelection(selection, CloseTyping | ClearTypingStyle, AlignCursorOnScrollIfNeeded, granularity); }
-    bool setSelectedRange(Range*, EAffinity, bool isDirectional = false, SetSelectionOptions = CloseTyping | ClearTypingStyle);
+    bool setSelectedRange(Range*, EAffinity, DirectoinalOption directional = NonDirectional, SetSelectionOptions = CloseTyping | ClearTypingStyle);
     void selectAll();
     void clear();
     void prepareForDestruction();