Revert "Remove OwnPtr from Blink."

third_party/WebKit/Source/web/ChromeClientImpl.h

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
  *
  * 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.
@@ skipping 18 matching lines @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef ChromeClientImpl_h
 #define ChromeClientImpl_h
 
 #include "core/page/ChromeClient.h"
 #include "core/page/WindowFeatures.h"
 #include "public/web/WebNavigationPolicy.h"
 #include "web/WebExport.h"
-#include <memory>
+#include "wtf/PassOwnPtr.h"
 
 namespace blink {
 
 class PagePopup;
 class PagePopupClient;
 class WebViewImpl;
 struct WebCursorInfo;
 
 // Handles window-level notifications from core on behalf of a WebView.
 class WEB_EXPORT ChromeClientImpl final : public ChromeClient {
@@ skipping 127 matching lines @@
 
     void showUnhandledTapUIIfNeeded(IntPoint, Node*, bool) override;
     void onMouseDown(Node*) override;
     void didUpdateTopControls() const override;
 
     CompositorProxyClient* createCompositorProxyClient(LocalFrame*) override;
     FloatSize elasticOverscroll() const override;
 
     void didObserveNonGetFetchFromScript() const override;
 
-    std::unique_ptr<WebFrameScheduler> createFrameScheduler(BlameContext*) override;
+    PassOwnPtr<WebFrameScheduler> createFrameScheduler(BlameContext*) override;
 
     double lastFrameTimeMonotonic() const override;
 
     void notifyPopupOpeningObservers() const;
 
 private:
     explicit ChromeClientImpl(WebViewImpl*);
 
     bool isChromeClientImpl() const override { return true; }
     void registerPopupOpeningObserver(PopupOpeningObserver*) override;
     void unregisterPopupOpeningObserver(PopupOpeningObserver*) override;
 
     void setCursor(const WebCursorInfo&, LocalFrame* localRoot);
 
     WebViewImpl* m_webView; // Weak pointer.
     WindowFeatures m_windowFeatures;
     Vector<PopupOpeningObserver*> m_popupOpeningObservers;
     Cursor m_lastSetMouseCursorForTesting;
     bool m_cursorOverridden;
     bool m_didRequestNonEmptyToolTip;
 };
 
 DEFINE_TYPE_CASTS(ChromeClientImpl, ChromeClient, client, client->isChromeClientImpl(), client.isChromeClientImpl());
 
 } // namespace blink
 
 #endif