[preload] Mandatory `as` value and related spec alignments

third_party/WebKit/Source/core/html/parser/HTMLPreloadScannerTest.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/HTMLPreloadScanner.h"
 
 #include <memory>
 #include "core/MediaTypeNames.h"
 #include "core/css/MediaValuesCached.h"
 #include "core/frame/Settings.h"
@@ skipping 779 matching lines @@
        "bla.gif", "http://example.test/", Resource::kImage, 0,
        kReferrerPolicyAlways, nullptr},
   };
 
   for (const auto& test_case : test_cases)
     Test(test_case);
 }
 
 TEST_F(HTMLPreloadScannerTest, testLinkRelPreload) {
   TestCase test_cases[] = {
-      {"http://example.test", "<link rel=preload href=bla>", "bla",
+      {"http://example.test", "<link rel=preload as=fetch href=bla>", "bla",
        "http://example.test/", Resource::kRaw, 0},
       {"http://example.test", "<link rel=preload href=bla as=script>", "bla",
        "http://example.test/", Resource::kScript, 0},
       {"http://example.test",
        "<link rel=preload href=bla as=script type='script/foo'>", "bla",
        "http://example.test/", Resource::kScript, 0},
       {"http://example.test", "<link rel=preload href=bla as=style>", "bla",
        "http://example.test/", Resource::kCSSStyleSheet, 0},
       {"http://example.test",
        "<link rel=preload href=bla as=style type='text/css'>", "bla",
@@ skipping 20 matching lines @@
       {"http://example.test", "<link rel=preload href=bla as=video>", "bla",
        "http://example.test/", Resource::kMedia, 0},
       {"http://example.test", "<link rel=preload href=bla as=track>", "bla",
        "http://example.test/", Resource::kTextTrack, 0},
       {"http://example.test",
        "<link rel=preload href=bla as=image media=\"(max-width: 800px)\">",
        "bla", "http://example.test/", Resource::kImage, 0},
       {"http://example.test",
        "<link rel=preload href=bla as=image media=\"(max-width: 400px)\">",
        nullptr, "http://example.test/", Resource::kImage, 0},
+      {"http://example.test", "<link rel=preload href=bla>", nullptr,
+       "http://example.test/", Resource::kRaw, 0},
   };
 
   for (const auto& test_case : test_cases)
     Test(test_case);
 }
 
 TEST_F(HTMLPreloadScannerTest, testNoDataUrls) {
   TestCase test_cases[] = {
       {"http://example.test",
        "<link rel=preload href='data:text/html,<p>data</data>'>", nullptr,
@@ skipping 82 matching lines @@
       "sheet.css",
       "http://example.test/",
       Resource::kCSSStyleSheet,
       0,
       kReferrerPolicyAlways,
       "http://whatever.test/"};
   Test(test_case);
 }
 
 }  // namespace blink