Notify the HTMLDocumentParser on document element available

third_party/WebKit/Source/core/dom/DocumentParser.h

Index: third_party/WebKit/Source/core/dom/DocumentParser.h
diff --git a/third_party/WebKit/Source/core/dom/DocumentParser.h b/third_party/WebKit/Source/core/dom/DocumentParser.h
index 6fed8597eeaee1ed27815dba88637bf30a644946..3362c21eba50e63cb6ab57396f0f22cfd468ae44 100644
--- a/third_party/WebKit/Source/core/dom/DocumentParser.h
+++ b/third_party/WebKit/Source/core/dom/DocumentParser.h
@@ -86,6 +86,10 @@ public:
     // Oilpan: We don't need to call detach when a Document is destructed.
     virtual void detach();
 
+    // Notifies the parser that the document element is available. Used by
+    // HTMLDocumentParser to dispatch preloads.
+    virtual void documentElementAvailable() { }
+
     void setDocumentWasLoadedAsPartOfNavigation() { m_documentWasLoadedAsPartOfNavigation = true; }
     bool documentWasLoadedAsPartOfNavigation() const { return m_documentWasLoadedAsPartOfNavigation; }