Remove OwnPtr from Blink.

third_party/WebKit/Source/web/DateTimeChooserImpl.h

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 15 matching lines @@
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef DateTimeChooserImpl_h
 #define DateTimeChooserImpl_h
 
 #include "core/html/forms/DateTimeChooser.h"
 #include "core/page/PagePopupClient.h"
+#include <memory>
 
 namespace blink {
 
 class ChromeClientImpl;
 class DateTimeChooserClient;
 class PagePopup;
 
 class DateTimeChooserImpl final : public DateTimeChooser, public PagePopupClient {
 public:
     static DateTimeChooserImpl* create(ChromeClientImpl*, DateTimeChooserClient*, const DateTimeChooserParameters&);
@@ skipping 14 matching lines @@
     void setValueAndClosePopup(int, const String&) override;
     void setValue(const String&) override;
     void closePopup() override;
     Element& ownerElement() override;
     void didClosePopup() override;
 
     Member<ChromeClientImpl> m_chromeClient;
     Member<DateTimeChooserClient> m_client;
     PagePopup* m_popup;
     DateTimeChooserParameters m_parameters;
-    OwnPtr<Locale> m_locale;
+    std::unique_ptr<Locale> m_locale;
 };
 
 } // namespace blink
 
 #endif // DateTimeChooserImpl_h