Switch to using accessibilityEnabled and inlineTextBoxAccessibilityEnabled from settings

Source/core/accessibility/AXObjectCache.h

Index: Source/core/accessibility/AXObjectCache.h
diff --git a/Source/core/accessibility/AXObjectCache.h b/Source/core/accessibility/AXObjectCache.h
index 69a398bfaa3caf07944c4bad84e8aed60339dcd8..7cee999277c14380e82d641191b98ec0fc4638a0 100644
--- a/Source/core/accessibility/AXObjectCache.h
+++ b/Source/core/accessibility/AXObjectCache.h
@@ -145,11 +145,6 @@ public:
 
     void inlineTextBoxesUpdated(RenderObject* renderer);
 
-    static void enableAccessibility() { gAccessibilityEnabled = true; }
-    static bool accessibilityEnabled() { return gAccessibilityEnabled; }
-    static void setInlineTextBoxAccessibility(bool flag) { gInlineTextBoxAccessibility = flag; }
-    static bool inlineTextBoxAccessibility() { return gInlineTextBoxAccessibility; }
-
     void removeAXID(AXObject*);
     bool isIDinUse(AXID id) const { return m_idsInUse.contains(id); }
 
@@ -220,8 +215,6 @@ private:
     HashMap<AbstractInlineTextBox*, AXID> m_inlineTextBoxObjectMapping;
     HashSet<Node*> m_textMarkerNodes;
     OwnPtr<AXComputedObjectAttributeCache> m_computedObjectAttributeCache;
-    static bool gAccessibilityEnabled;
-    static bool gInlineTextBoxAccessibility;
 
     HashSet<AXID> m_idsInUse;