Convert //ios from scoped_ptr to std::unique_ptr.

ios/web/webui/url_data_manager_ios_backend.h

 // Copyright 2014 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 IOS_INTERNAL_WEB_WEBUI_URL_DATA_MANAGER_BACKEND_IOS_H_
 #define IOS_INTERNAL_WEB_WEBUI_URL_DATA_MANAGER_BACKEND_IOS_H_
 
 #include <map>
+#include <memory>
 #include <string>
 #include <vector>
 
 #include "base/compiler_specific.h"
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "base/supports_user_data.h"
 #include "ios/web/public/url_data_source_ios.h"
 #include "ios/web/webui/url_data_manager_ios.h"
 #include "net/url_request/url_request_job_factory.h"
 
 class GURL;
 
 namespace base {
 class RefCountedMemory;
 }
 
 namespace web {
 class BrowserState;
 class URLDataSourceIOSImpl;
 class URLRequestChromeJob;
 
 // URLDataManagerIOSBackend is used internally by URLDataManagerIOS on
 // the IO thread. In most cases you can use the API in URLDataManagerIOS
 // and ignore this class. URLDataManagerIOSBackend is owned by BrowserState.
 class URLDataManagerIOSBackend : public base::SupportsUserData::Data {
  public:
   typedef int RequestID;
 
   URLDataManagerIOSBackend();
   ~URLDataManagerIOSBackend() override;
 
   // Invoked to create the protocol handler for chrome://. |is_incognito| should
   // be set for incognito browser states. Called on the UI thread.
-  static scoped_ptr<net::URLRequestJobFactory::ProtocolHandler>
+  static std::unique_ptr<net::URLRequestJobFactory::ProtocolHandler>
   CreateProtocolHandler(BrowserState* browser_state);
 
   // Adds a DataSource to the collection of data sources.
   void AddDataSource(URLDataSourceIOSImpl* source);
 
   // DataSource invokes this. Sends the data to the URLRequest.
   void DataAvailable(RequestID request_id, base::RefCountedMemory* bytes);
 
   static net::URLRequestJob* Factory(net::URLRequest* request,
                                      const std::string& scheme);
@@ skipping 38 matching lines @@
 
   // The ID we'll use for the next request we receive.
   RequestID next_request_id_;
 
   DISALLOW_COPY_AND_ASSIGN(URLDataManagerIOSBackend);
 };
 
 }  // namespace web
 
 #endif  // IOS_INTERNAL_WEB_WEBUI_URL_DATA_MANAGER_BACKEND_IOS_H_