Filter out data urls in the preload scanner

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

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "core/html/parser/HTMLResourcePreloader.h"
 
 #include "core/html/parser/PreloadRequest.h"
 #include "core/testing/DummyPageHolder.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include <memory>
@@ skipping 31 matching lines @@
 };
 
 class HTMLResourcePreloaderTest : public testing::Test {
  protected:
   HTMLResourcePreloaderTest() : m_dummyPageHolder(DummyPageHolder::create()) {}
 
   void test(PreconnectTestCase testCase) {
     // TODO(yoav): Need a mock loader here to verify things are happenning
     // beyond preconnect.
     PreloaderNetworkHintsMock networkHints;
-    std::unique_ptr<PreloadRequest> preloadRequest = PreloadRequest::create(
+    auto preloadRequest = PreloadRequest::createIfNeeded(
         String(), TextPosition(), testCase.url,
         KURL(ParsedURLStringTag(), testCase.baseURL), Resource::Image,
         ReferrerPolicy(), FetchRequest::ResourceWidth(),
         ClientHintsPreferences(), PreloadRequest::RequestTypePreconnect);
+    DCHECK(preloadRequest);
     if (testCase.isCORS)
       preloadRequest->setCrossOrigin(CrossOriginAttributeAnonymous);
     HTMLResourcePreloader* preloader =
         HTMLResourcePreloader::create(m_dummyPageHolder->document());
     preloader->preload(std::move(preloadRequest), networkHints);
     ASSERT_TRUE(networkHints.didPreconnect());
     ASSERT_EQ(testCase.isCORS, networkHints.isCrossOrigin());
     ASSERT_EQ(testCase.isHTTPS, networkHints.isHTTPS());
   }
 
@@ skipping 11 matching lines @@
       {"http://example.test", "//example.com", true, false},
       {"https://example.test", "//example.com", false, true},
       {"https://example.test", "//example.com", true, true},
   };
 
   for (const auto& testCase : testCases)
     test(testCase);
 }
 
 }  // namespace blink