Remove OwnPtr from Blink.

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

Index: third_party/WebKit/Source/core/html/parser/CSSPreloadScanner.cpp
diff --git a/third_party/WebKit/Source/core/html/parser/CSSPreloadScanner.cpp b/third_party/WebKit/Source/core/html/parser/CSSPreloadScanner.cpp
index 939aa3836a892d4162a09e8d86ce1e8046e7d0b7..0b8fb30bd64ccb2e3673a74f60f4b014c2742a74 100644
--- a/third_party/WebKit/Source/core/html/parser/CSSPreloadScanner.cpp
+++ b/third_party/WebKit/Source/core/html/parser/CSSPreloadScanner.cpp
@@ -30,6 +30,7 @@
 #include "core/fetch/FetchInitiatorTypeNames.h"
 #include "core/html/parser/HTMLParserIdioms.h"
 #include "platform/text/SegmentedString.h"
+#include <memory>
 
 namespace blink {
 
@@ -220,7 +221,7 @@ void CSSPreloadScanner::emitRule(const SegmentedString& source)
         String url = parseCSSStringOrURL(m_ruleValue.toString());
         if (!url.isEmpty()) {
             TextPosition position = TextPosition(source.currentLine(), source.currentColumn());
-            OwnPtr<PreloadRequest> request = PreloadRequest::create(FetchInitiatorTypeNames::css, position, url, *m_predictedBaseElementURL, Resource::CSSStyleSheet, m_referrerPolicy);
+            std::unique_ptr<PreloadRequest> request = PreloadRequest::create(FetchInitiatorTypeNames::css, position, url, *m_predictedBaseElementURL, Resource::CSSStyleSheet, m_referrerPolicy);
             // FIXME: Should this be including the charset in the preload request?
             m_requests->append(std::move(request));
         }