Filter out data urls in the preload scanner

third_party/WebKit/Source/core/html/parser/HTMLPreloadScanner.cpp

Index: third_party/WebKit/Source/core/html/parser/HTMLPreloadScanner.cpp
diff --git a/third_party/WebKit/Source/core/html/parser/HTMLPreloadScanner.cpp b/third_party/WebKit/Source/core/html/parser/HTMLPreloadScanner.cpp
index b664912074081ba5a020b8c0980045d2d856b970..033b23ec59443b17c6bbfb5e954dda2ce9bf0405 100644
--- a/third_party/WebKit/Source/core/html/parser/HTMLPreloadScanner.cpp
+++ b/third_party/WebKit/Source/core/html/parser/HTMLPreloadScanner.cpp
@@ -241,9 +241,12 @@ class TokenPreloadScanner::StartTagScanner {
     ReferrerPolicy referrerPolicy = (m_referrerPolicy != ReferrerPolicyDefault)
                                         ? m_referrerPolicy
                                         : documentReferrerPolicy;
-    std::unique_ptr<PreloadRequest> request = PreloadRequest::create(
+    auto request = PreloadRequest::createIfNeeded(
         initiatorFor(m_tagImpl), position, m_urlToLoad, predictedBaseURL, type,
         referrerPolicy, resourceWidth, clientHintsPreferences, requestType);
+    if (!request)
+      return nullptr;
+
     request->setCrossOrigin(m_crossOrigin);
     request->setNonce(m_nonce);
     request->setCharset(charset());