--- a/content/html/content/src/nsHTMLAnchorElement.cpp
+++ b/content/html/content/src/nsHTMLAnchorElement.cpp
@@ -46,16 +46,17 @@
 #include "nsContentUtils.h"
 #include "nsReadableUtils.h"
 #include "nsUnicharUtils.h"
 #include "nsGkAtoms.h"
 #include "nsIPresShell.h"
 #include "nsIDocument.h"
 #include "nsPresContext.h"
 #include "nsHTMLDNSPrefetch.h"
+#include "nsDOMMemoryReporter.h"
 
 using namespace mozilla::dom;
 
 class nsHTMLAnchorElement : public nsGenericHTMLElement,
                             public nsIDOMHTMLAnchorElement,
                             public nsILink,
                             public Link
 {
@@ -76,16 +77,21 @@ public:
   NS_FORWARD_NSIDOMELEMENT(nsGenericHTMLElement::)
 
   // nsIDOMHTMLElement
   NS_FORWARD_NSIDOMHTMLELEMENT(nsGenericHTMLElement::)
 
   // nsIDOMHTMLAnchorElement
   NS_DECL_NSIDOMHTMLANCHORELEMENT  
 
+  // TODO: we do not really count Link::mCachedURI but given that it's a
+  // nsCOMPtr<nsIURI>, that would be required adding SizeOf() to the interface.
+  NS_DECL_AND_IMPL_DOM_MEMORY_REPORTER_SIZEOF(nsHTMLAnchorElement,
+                                              nsGenericHTMLElement)
+
   // nsILink
   NS_IMETHOD LinkAdded() { return NS_OK; }
   NS_IMETHOD LinkRemoved() { return NS_OK; }
 
   // override from nsGenericHTMLElement
   NS_IMETHOD GetDraggable(PRBool* aDraggable);
 
   virtual nsresult BindToTree(nsIDocument* aDocument, nsIContent* aParent,
@@ -449,8 +455,9 @@ nsHTMLAnchorElement::ParseAttribute(PRIn
                                               aResult);
 }
 
 nsEventStates
 nsHTMLAnchorElement::IntrinsicState() const
 {
   return Link::LinkState() | nsGenericHTMLElement::IntrinsicState();
 }
+

--- a/content/html/content/src/nsHTMLDivElement.cpp
+++ b/content/html/content/src/nsHTMLDivElement.cpp
@@ -35,16 +35,17 @@
  *
  * ***** END LICENSE BLOCK ***** */
 #include "nsIDOMHTMLDivElement.h"
 #include "nsIDOMEventTarget.h"
 #include "nsGenericHTMLElement.h"
 #include "nsGkAtoms.h"
 #include "nsStyleConsts.h"
 #include "nsMappedAttributes.h"
+#include "nsDOMMemoryReporter.h"
 
 class nsHTMLDivElement : public nsGenericHTMLElement,
                          public nsIDOMHTMLDivElement
 {
 public:
   nsHTMLDivElement(already_AddRefed<nsINodeInfo> aNodeInfo);
   virtual ~nsHTMLDivElement();
 
@@ -58,16 +59,19 @@ public:
   NS_FORWARD_NSIDOMELEMENT(nsGenericHTMLElement::)
 
   // nsIDOMHTMLElement
   NS_FORWARD_NSIDOMHTMLELEMENT(nsGenericHTMLElement::)
 
   // nsIDOMHTMLDivElement
   NS_DECL_NSIDOMHTMLDIVELEMENT
 
+  NS_DECL_AND_IMPL_DOM_MEMORY_REPORTER_SIZEOF(nsHTMLDivElement,
+                                              nsGenericHTMLElement)
+
   virtual PRBool ParseAttribute(PRInt32 aNamespaceID,
                                 nsIAtom* aAttribute,
                                 const nsAString& aValue,
                                 nsAttrValue& aResult);
   NS_IMETHOD_(PRBool) IsAttributeMapped(const nsIAtom* aAttribute) const;
   virtual nsMapRuleToAttributesFunc GetAttributeMappingFunction() const;
   virtual nsresult Clone(nsINodeInfo *aNodeInfo, nsINode **aResult) const;
 

--- a/content/html/content/src/nsHTMLSpanElement.cpp
+++ b/content/html/content/src/nsHTMLSpanElement.cpp
@@ -36,16 +36,17 @@
  * ***** END LICENSE BLOCK ***** */
 #include "nsIDOMHTMLElement.h"
 #include "nsIDOMEventTarget.h"
 #include "nsGenericHTMLElement.h"
 #include "nsGkAtoms.h"
 #include "nsStyleConsts.h"
 #include "nsIAtom.h"
 #include "nsRuleData.h"
+#include "nsDOMMemoryReporter.h"
 
 class nsHTMLSpanElement : public nsGenericHTMLElement,
                           public nsIDOMHTMLElement
 {
 public:
   nsHTMLSpanElement(already_AddRefed<nsINodeInfo> aNodeInfo);
   virtual ~nsHTMLSpanElement();
 
@@ -56,16 +57,19 @@ public:
   NS_FORWARD_NSIDOMNODE(nsGenericHTMLElement::)
 
   // nsIDOMElement
   NS_FORWARD_NSIDOMELEMENT(nsGenericHTMLElement::)
 
   // nsIDOMHTMLElement
   NS_FORWARD_NSIDOMHTMLELEMENT(nsGenericHTMLElement::)
 
+  NS_DECL_AND_IMPL_DOM_MEMORY_REPORTER_SIZEOF(nsHTMLSpanElement,
+                                              nsGenericHTMLElement)
+
   virtual nsresult Clone(nsINodeInfo *aNodeInfo, nsINode **aResult) const;
 
   virtual nsXPCClassInfo* GetClassInfo();
 };
 
 
 NS_IMPL_NS_NEW_HTML_ELEMENT(Span)