Fix for bug 343954 (Patch from bug 332239 didn't change IID of nsIContentSerializer).

content/base/public/nsIContentSerializer.h

@@ -51,12 +51,9 @@ class nsAString;
 
 /* starting interface:    nsIContentSerializer */
 
-/* d650439a-ca29-410d-a906-b0557fb62fcd */
 #define NS_ICONTENTSERIALIZER_IID \
-{   0xd650439a, \
-    0xca29, \
-    0x410d, \
-    {0xa9, 0x06, 0xb0, 0x55, 0x7f, 0xb6, 0x2f, 0xcd} }
+{ 0x0921afbc, 0x4c6f, 0x4249, \
+  { 0xa7, 0xf5, 0x32, 0xe4, 0x91, 0xbf, 0x6e, 0x32 } }
 
 class nsIContentSerializer : public nsISupports {
  public: