Add CORS support for <link> elements.

Source/core/html/HTMLLinkElement.h

Index: Source/core/html/HTMLLinkElement.h
diff --git a/Source/core/html/HTMLLinkElement.h b/Source/core/html/HTMLLinkElement.h
index 0603d27600d71fa33cd0c89a63cda3da33b705e8..b9c6bd76b69f7cbe1396ba06b10011dfddb7bb23 100644
--- a/Source/core/html/HTMLLinkElement.h
+++ b/Source/core/html/HTMLLinkElement.h
@@ -84,7 +84,7 @@ public:
     CSSStyleSheet* sheet() const { return m_sheet.get(); }
 
 private:
-    // From ResourceClient
+    // From StyleSheetResourceClient
     virtual void setCSSStyleSheet(const String& href, const KURL& baseURL, const String& charset, const CSSStyleSheetResource*) OVERRIDE;
 
     enum DisabledState {
@@ -156,7 +156,7 @@ public:
     virtual bool shouldLoadLink() OVERRIDE;
 
     // For LinkStyle
-    bool loadLink(const String& type, const KURL& url) { return m_linkLoader.loadLink(m_relAttribute, type, url, document()); }
+    bool loadLink(const String&, const KURL&);

[abarth-chromium, 2014/01/28 06:38:45]

I'd probably keep the name |type| for the first argument because it's not clear
from context what it means.

[sof, 2014/01/28 07:23:01]

Yes, added 'type' back here + expanded LinkLoader::loadLink()'s declaration
similarly.

     bool isAlternate() const { return linkStyle()->isUnset() && m_relAttribute.isAlternate(); }
     bool shouldProcessStyle() { return linkResourceToProcess() && linkStyle(); }
     bool isCreatedByParser() const { return m_createdByParser; }