Stop clamping tabIndex to short range

third_party/WebKit/Source/core/dom/ElementRareData.h

Index: third_party/WebKit/Source/core/dom/ElementRareData.h
diff --git a/third_party/WebKit/Source/core/dom/ElementRareData.h b/third_party/WebKit/Source/core/dom/ElementRareData.h
index 9235d629c24a72f9bf0c4ecd95925d027aa98c02..5332fd06c14d2e2a817510260f3a0efe51acf7d5 100644
--- a/third_party/WebKit/Source/core/dom/ElementRareData.h
+++ b/third_party/WebKit/Source/core/dom/ElementRareData.h
@@ -61,9 +61,9 @@ class ElementRareData : public NodeRareData {
   void setPseudoElement(PseudoId, PseudoElement*);
   PseudoElement* pseudoElement(PseudoId) const;
 
-  short tabIndex() const { return m_tabindex; }
+  int tabIndex() const { return m_tabindex; }
 
-  void setTabIndexExplicitly(short index) {
+  void setTabIndexExplicitly(int index) {
     m_tabindex = index;
     setElementFlag(TabIndexWasSetExplicitly, true);
   }
@@ -181,7 +181,7 @@ class ElementRareData : public NodeRareData {
   CompositorProxiedPropertySet& ensureCompositorProxiedPropertySet();
   void clearCompositorProxiedPropertySet() { m_proxiedProperties = nullptr; }
 
-  short m_tabindex;
+  int m_tabindex;
 
   LayoutSize m_minimumSizeForResizing;
   ScrollOffset m_savedLayerScrollOffset;