Bug 788923 - Part 1: When prefetching a document using a Link header, use the document element as the source node; r=bzbarsky

content/base/src/nsContentSink.cpp

@@ -688,7 +688,7 @@ nsContentSink::ProcessLink(const nsSubstring& aAnchor, const nsSubstring& aHref,
   bool hasPrefetch = linkTypes & PREFETCH;
   // prefetch href if relation is "next" or "prefetch"
   if (hasPrefetch || (linkTypes & NEXT)) {
-    PrefetchHref(aHref, nullptr, hasPrefetch);
+    PrefetchHref(aHref, mDocument, hasPrefetch);
   }
 
   if (!aHref.IsEmpty() && (linkTypes & DNS_PREFETCH)) {
@@ -795,7 +795,7 @@ nsContentSink::ProcessMETATag(nsIContent* aContent)
 
 void
 nsContentSink::PrefetchHref(const nsAString &aHref,
-                            nsIContent *aSource,
+                            nsINode *aSource,
                             bool aExplicit)
 {
   //

content/base/src/nsContentSink.h

@@ -159,7 +159,7 @@ protected:
                                     const nsSubstring& aType,
                                     const nsSubstring& aMedia);
 
-  void PrefetchHref(const nsAString &aHref, nsIContent *aSource,
+  void PrefetchHref(const nsAString &aHref, nsINode *aSource,
                     bool aExplicit);
 
   // aHref can either be the usual URI format or of the form "//www.hostname.com"