Declarative resource hints go through mojo IPC to //content

third_party/WebKit/Source/core/html/HTMLAnchorElement.cpp

Index: third_party/WebKit/Source/core/html/HTMLAnchorElement.cpp
diff --git a/third_party/WebKit/Source/core/html/HTMLAnchorElement.cpp b/third_party/WebKit/Source/core/html/HTMLAnchorElement.cpp
index e74548006ea6219402dacb1a555a086e67eb9440..905a213870d6bf31dd9a9506dfc3e981204486ee 100644
--- a/third_party/WebKit/Source/core/html/HTMLAnchorElement.cpp
+++ b/third_party/WebKit/Source/core/html/HTMLAnchorElement.cpp
@@ -35,8 +35,8 @@
 #include "core/loader/FrameLoaderClient.h"
 #include "core/loader/PingLoader.h"
 #include "core/page/ChromeClient.h"
-#include "platform/network/NetworkHints.h"
 #include "platform/weborigin/SecurityPolicy.h"
+#include "public/platform/Platform.h"
 
 namespace blink {
 
@@ -198,7 +198,7 @@ void HTMLAnchorElement::parseAttribute(const QualifiedName& name, const AtomicSt
             String parsedURL = stripLeadingAndTrailingHTMLSpaces(value);
             if (document().isDNSPrefetchEnabled()) {
                 if (protocolIs(parsedURL, "http") || protocolIs(parsedURL, "https") || parsedURL.startsWith("//"))
-                    prefetchDNS(document().completeURL(parsedURL).host());
+                    Platform::current()->speculativePreresolve(document().completeURL(parsedURL));
             }
         }
         invalidateCachedVisitedLinkHash();