Bug 353197. Table interface not exposed for tables in ATK. r=gaoming

accessible/src/html/nsHTMLTableAccessible.cpp

@@ -77,7 +77,7 @@ NS_IMETHODIMP nsHTMLTableCellAccessible::GetState(PRUint32 *aResult)
   return NS_OK;
 }
 
-NS_IMPL_ISUPPORTS_INHERITED0(nsHTMLTableAccessible, nsAccessible)
+NS_IMPL_ISUPPORTS_INHERITED1(nsHTMLTableAccessible, nsAccessible, nsIAccessibleTable)
 
 nsHTMLTableAccessible::nsHTMLTableAccessible(nsIDOMNode* aDomNode, nsIWeakReference* aShell):
 nsAccessibleWrap(aDomNode, aShell)

accessible/src/html/nsHTMLTableAccessible.h

@@ -59,7 +59,8 @@ class nsITableLayout;
 // Change to |#define SHOW_LAYOUT_HEURISTIC DEBUG| before final release
 #define SHOW_LAYOUT_HEURISTIC
 
-class nsHTMLTableAccessible : public nsAccessibleWrap
+class nsHTMLTableAccessible : public nsAccessibleWrap,
+                              public nsIAccessibleTable
 {
 public:
   NS_DECL_ISUPPORTS_INHERITED