Nuke WebPassOwnPtr<T> and replace it with std::unique_ptr<T>.

third_party/WebKit/public/platform/WebURLLoaderMockFactory.h

 // Copyright 2016 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.
 
 #ifndef WebURLLoaderMockFactory_h
 #define WebURLLoaderMockFactory_h
 
 #include "public/platform/WebCommon.h"
 #include "public/platform/WebData.h"
-#include "public/platform/WebPassOwnPtr.h"
 #include "public/platform/WebString.h"
 #include "public/platform/WebURLLoaderTestDelegate.h"
 
+#include <memory>
+
 namespace blink {
 
 class WebURL;
 class WebURLResponse;
 struct WebURLError;
 
 class WebURLLoaderMockFactory {
 public:
-    static WebPassOwnPtr<WebURLLoaderMockFactory> create();
+    static std::unique_ptr<WebURLLoaderMockFactory> create();
 
     virtual ~WebURLLoaderMockFactory() {}
 
     // Create a WebURLLoader that takes care of mocked requests.
     // Non-mocked request are forwarded to given loader which should not
     // be nullptr.
     virtual WebURLLoader* createURLLoader(WebURLLoader*) = 0;
 
     // Registers a response and the file to be served when the specified URL
     // is loaded. If no file is specified then the response content will be empty.
@@ skipping 15 matching lines @@
     // FrameTestHelpers instead.
     virtual void serveAsynchronousRequests() = 0;
 
     // Set a delegate that allows callbacks for all WebURLLoaderClients to be intercepted.
     virtual void setLoaderDelegate(WebURLLoaderTestDelegate*) = 0;
 };
 
 } // namespace blink
 
 #endif // WebURLLoaderMockFactory_h