Selection attributes changes from long to unsigned long

Source/core/editing/DOMSelection.h

Index: Source/core/editing/DOMSelection.h
diff --git a/Source/core/editing/DOMSelection.h b/Source/core/editing/DOMSelection.h
index cb45a71fc39ef18307b669f5def12eb824ee1d9a..e00ea1b1e0e173ff45bb68e24e3311d4b90fd55f 100644
--- a/Source/core/editing/DOMSelection.h
+++ b/Source/core/editing/DOMSelection.h
@@ -61,11 +61,11 @@ public:
     // Safari Selection Object API
     // These methods return the valid equivalents of internal editing positions.
     Node* baseNode() const;
-    int baseOffset() const;
+    unsigned baseOffset() const;
     Node* extentNode() const;
-    int extentOffset() const;
+    unsigned extentOffset() const;
     String type() const;
-    void setBaseAndExtent(Node* baseNode, int baseOffset, Node* extentNode, int extentOffset, ExceptionState&);
+    void setBaseAndExtent(Node* baseNode, unsigned baseOffset, Node* extentNode, unsigned extentOffset, ExceptionState&);
     void modify(const String& alter, const String& direction, const String& granularity);
 
     // Mozilla Selection Object API
@@ -75,16 +75,16 @@ public:
     // expansion.
     // These methods return the valid equivalents of internal editing positions.
     Node* anchorNode() const;
-    int anchorOffset() const;
+    unsigned anchorOffset() const;
     Node* focusNode() const;
-    int focusOffset() const;
+    unsigned focusOffset() const;
     bool isCollapsed() const;
-    int rangeCount() const;
-    void collapse(Node*, int offset, ExceptionState&);
+    unsigned rangeCount() const;
+    void collapse(Node*, unsigned offset, ExceptionState&);
     void collapseToEnd(ExceptionState&);
     void collapseToStart(ExceptionState&);
-    void extend(Node*, int offset, ExceptionState&);
-    PassRefPtrWillBeRawPtr<Range> getRangeAt(int, ExceptionState&);
+    void extend(Node*, unsigned offset, ExceptionState&);
+    PassRefPtrWillBeRawPtr<Range> getRangeAt(unsigned, ExceptionState&);
     void removeAllRanges();
     void addRange(Range*);
     void deleteFromDocument();
@@ -105,7 +105,7 @@ private:
     const VisibleSelection& visibleSelection() const;
 
     Node* shadowAdjustedNode(const Position&) const;
-    int shadowAdjustedOffset(const Position&) const;
+    unsigned shadowAdjustedOffset(const Position&) const;
 
     bool isValidForPosition(Node*) const;