Add <link rel=preconnect> support to the HTMLPreloadScanner

Source/core/html/parser/HTMLPreloadScanner.h

Index: Source/core/html/parser/HTMLPreloadScanner.h
diff --git a/Source/core/html/parser/HTMLPreloadScanner.h b/Source/core/html/parser/HTMLPreloadScanner.h
index 53e8d9718a02635bb9793cb807a1f7eb74615991..e80f45dca3f2a4ea365d3771013b04bad586bb8e 100644
--- a/Source/core/html/parser/HTMLPreloadScanner.h
+++ b/Source/core/html/parser/HTMLPreloadScanner.h
@@ -33,6 +33,7 @@
 #include "core/html/parser/CSSPreloadScanner.h"
 #include "core/html/parser/CompactHTMLToken.h"
 #include "core/html/parser/HTMLToken.h"
+#include "core/loader/Preconnecter.h"
 #include "platform/text/SegmentedString.h"
 #include "wtf/RefCounted.h"
 #include "wtf/Vector.h"
@@ -63,7 +64,7 @@ private:
 class TokenPreloadScanner {
     WTF_MAKE_NONCOPYABLE(TokenPreloadScanner); WTF_MAKE_FAST_ALLOCATED(TokenPreloadScanner);
 public:
-    TokenPreloadScanner(const KURL& documentURL, PassOwnPtr<CachedDocumentParameters>);
+    TokenPreloadScanner(const KURL& documentURL, PassOwnPtr<CachedDocumentParameters>, PassOwnPtr<PreconnecterHost>);
     ~TokenPreloadScanner();
 
     void scan(const HTMLToken&, const SegmentedString&, PreloadRequestStream& requests);
@@ -119,6 +120,7 @@ private:
     size_t m_templateCount;
     OwnPtr<CachedDocumentParameters> m_documentParameters;
     ClientHintsPreferences m_clientHintsPreferences;
+    OwnPtr<PreconnecterHost> m_preconnecter;
 
     Vector<Checkpoint> m_checkpoints;
 };
@@ -126,13 +128,13 @@ private:
 class CORE_EXPORT HTMLPreloadScanner {
     WTF_MAKE_NONCOPYABLE(HTMLPreloadScanner); WTF_MAKE_FAST_ALLOCATED(HTMLPreloadScanner);
 public:
-    static PassOwnPtr<HTMLPreloadScanner> create(const HTMLParserOptions& options, const KURL& documentURL, PassOwnPtr<CachedDocumentParameters> documentParameters)
+    static PassOwnPtr<HTMLPreloadScanner> create(const HTMLParserOptions& options, const KURL& documentURL, PassOwnPtr<CachedDocumentParameters> documentParameters, PassOwnPtr<PreconnecterHost> preconnecter)
     {
-        return adoptPtr(new HTMLPreloadScanner(options, documentURL, documentParameters));
+        return adoptPtr(new HTMLPreloadScanner(options, documentURL, documentParameters, preconnecter));
     }
 
 
-    HTMLPreloadScanner(const HTMLParserOptions&, const KURL& documentURL, PassOwnPtr<CachedDocumentParameters>);
+    HTMLPreloadScanner(const HTMLParserOptions&, const KURL& documentURL, PassOwnPtr<CachedDocumentParameters>, PassOwnPtr<PreconnecterHost>);
     ~HTMLPreloadScanner();
 
     void appendToEnd(const SegmentedString&);