Bug 386282 - nsIAccessible::GetDescription() fails on document accessible, r=me, patch=vasiliy.potapenko

accessible/src/base/nsDocAccessible.cpp

@@ -201,6 +201,13 @@ NS_IMETHODIMP nsDocAccessible::GetValue(nsAString& aValue)
   return GetURL(aValue);
 }
 
+NS_IMETHODIMP 
+nsDocAccessible::GetDescription(nsAString& aDescription)
+{
+  aDescription.Truncate();
+  return NS_OK;
+}
+
 NS_IMETHODIMP
 nsDocAccessible::GetState(PRUint32 *aState, PRUint32 *aExtraState)
 {

accessible/src/base/nsDocAccessible.h

@@ -76,6 +76,7 @@ class nsDocAccessible : public nsHyperTextAccessibleWrap,
     NS_IMETHOD GetRole(PRUint32 *aRole);
     NS_IMETHOD GetName(nsAString& aName);
     NS_IMETHOD GetValue(nsAString& aValue);
+    NS_IMETHOD GetDescription(nsAString& aDescription);
     NS_IMETHOD GetState(PRUint32 *aState, PRUint32 *aExtraState);
     NS_IMETHOD GetFocusedChild(nsIAccessible **aFocusedChild);
     NS_IMETHOD GetParent(nsIAccessible **aParent);