Fix unit test style in core/{dom,editing,html}/.

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 "config.h"
 #include "core/html/parser/HTMLPreloadScanner.h"
 
 #include "core/MediaTypeNames.h"
 #include "core/css/MediaValuesCached.h"
 #include "core/fetch/ClientHintsPreferences.h"
@@ skipping 38 matching lines @@
     {
         if (!host.isNull()) {
             EXPECT_TRUE(m_preloadRequest->isPreconnect());
             EXPECT_STREQ(m_preloadRequest->resourceURL().ascii().data(), host.ascii().data());
             EXPECT_EQ(m_preloadRequest->isCORS(), crossOrigin != CrossOriginAttributeNotSet);
             EXPECT_EQ(m_preloadRequest->isAllowCredentials(), crossOrigin == CrossOriginAttributeUseCredentials);
         }
     }
 
 protected:
-    virtual void preload(PassOwnPtr<PreloadRequest> preloadRequest)
+    void preload(PassOwnPtr<PreloadRequest> preloadRequest) override
     {
         m_preloadRequest = preloadRequest;
     }
 
 private:
-
     OwnPtr<PreloadRequest> m_preloadRequest;
 };
 
 class HTMLPreloadScannerTest : public testing::Test {
 protected:
     HTMLPreloadScannerTest()
         : m_dummyPageHolder(DummyPageHolder::create())
     {
     }
 
@@ skipping 18 matching lines @@
 
     void runSetUp(bool viewportEnabled)
     {
         HTMLParserOptions options(&m_dummyPageHolder->document());
         KURL documentURL(ParsedURLString, "http://whatever.test/");
         m_dummyPageHolder->document().settings()->setViewportEnabled(viewportEnabled);
         m_dummyPageHolder->document().settings()->setViewportMetaEnabled(viewportEnabled);
         m_scanner = HTMLPreloadScanner::create(options, documentURL, CachedDocumentParameters::create(&m_dummyPageHolder->document(), createMediaValues()));
     }
 
-    virtual void SetUp()
+    void SetUp() override
     {
         runSetUp(true);
     }
 
     void test(TestCase testCase)
     {
         MockHTMLResourcePreloader preloader;
         KURL baseURL(ParsedURLString, testCase.baseURL);
         m_scanner->appendToEnd(String(testCase.inputHTML));
         m_scanner->scan(&preloader, baseURL);
@@ skipping 124 matching lines @@
         {"http://example.test", "<link rel=preconnect href=http://example2.test crossorigin=anonymous>", "http://example2.test", CrossOriginAttributeAnonymous},
         {"http://example.test", "<link rel=preconnect href=http://example2.test crossorigin='use-credentials'>", "http://example2.test", CrossOriginAttributeUseCredentials},
         {"http://example.test", "<link rel=preconnected href=http://example2.test crossorigin='use-credentials'>", nullptr, CrossOriginAttributeNotSet},
         {"http://example.test", "<link rel=preconnect href=ws://example2.test crossorigin='use-credentials'>", nullptr, CrossOriginAttributeNotSet},
     };
 
     for (const auto& testCase : testCases)
         test(testCase);
 }
 
-}
+} // namespace blink