Use unique_ptr for Platform::CreateURLLoader

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/WebString.h"
@@ skipping 10 matching lines @@
 
 class WebURLLoaderMockFactory {
  public:
   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;
+  virtual std::unique_ptr<WebURLLoader> CreateURLLoader(
+      std::unique_ptr<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.
   // unregisterURL() should be called for each test entry before registering
   // another response for the same URL from another test.
   virtual void RegisterURL(const WebURL&,
                            const WebURLResponse&,
                            const WebString& file_path) = 0;
 
   // Registers an error to be served when the specified URL is requested.
@@ skipping 20 matching lines @@
   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