Bug 461199 (Part 19) - nsSVGAElement fails to call ResetLinkState in [Uns|S]etAttr

Have nsSVGAelement implement UnsetAttr and SetAttr, and make sure it calls
mozilla::dom::Link::ResetLinkState when appropriate.
r=jwatt
sr=bz

content/svg/content/src/nsSVGAElement.cpp

@@ -263,6 +263,30 @@ nsSVGAElement::IntrinsicState() const
   return Link::LinkState() | nsSVGAElementBase::IntrinsicState();
 }
 
+nsresult
+nsSVGAElement::SetAttr(PRInt32 aNameSpaceID, nsIAtom* aName,
+                       nsIAtom* aPrefix, const nsAString& aValue,
+                       PRBool aNotify)
+{
+  if (aName == nsGkAtoms::href && aNameSpaceID == kNameSpaceID_XLink) {
+    Link::ResetLinkState();
+  }
+
+  return nsSVGAElementBase::SetAttr(aNameSpaceID, aName, aPrefix, aValue,
+                                    aNotify);
+}
+
+nsresult
+nsSVGAElement::UnsetAttr(PRInt32 aNameSpaceID, nsIAtom* aAttr,
+                         PRBool aNotify)
+{
+  if (aAttr == nsGkAtoms::href && aNameSpaceID == kNameSpaceID_XLink) {
+    Link::ResetLinkState();
+  }
+
+  return nsSVGAElementBase::UnsetAttr(aNameSpaceID, aAttr, aNotify);
+}
+
 //----------------------------------------------------------------------
 // nsSVGElement methods
 

content/svg/content/src/nsSVGAElement.h

@@ -90,6 +90,16 @@ public:
   virtual void SetLinkState(nsLinkState aState);
   virtual already_AddRefed<nsIURI> GetHrefURI() const;
   virtual PRInt32 IntrinsicState() const;
+  nsresult SetAttr(PRInt32 aNameSpaceID, nsIAtom* aName,
+                   const nsAString& aValue, PRBool aNotify)
+  {
+    return SetAttr(aNameSpaceID, aName, nsnull, aValue, aNotify);
+  }
+  virtual nsresult SetAttr(PRInt32 aNameSpaceID, nsIAtom* aName,
+                           nsIAtom* aPrefix, const nsAString& aValue,
+                           PRBool aNotify);
+  virtual nsresult UnsetAttr(PRInt32 aNameSpaceID, nsIAtom* aAttribute,
+                             PRBool aNotify);
 
 protected: