Adjust URLFetcher::Create API so that object is returned as scoped_ptr.

content/shell/browser/shell_devtools_frontend.cc

 // Copyright 2013 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.
 
 #include "content/shell/browser/shell_devtools_frontend.h"
 
 #include "base/command_line.h"
 #include "base/json/json_reader.h"
 #include "base/json/json_writer.h"
 #include "base/strings/string_number_conversions.h"
@@ skipping 198 matching lines @@
 
     GURL gurl(url);
     if (!gurl.is_valid()) {
       base::DictionaryValue response;
       response.SetInteger("statusCode", 404);
       SendMessageAck(request_id, &response);
       return;
     }
 
     net::URLFetcher* fetcher =
-        net::URLFetcher::Create(gurl, net::URLFetcher::GET, this);
+        net::URLFetcher::Create(gurl, net::URLFetcher::GET, this).release();
     pending_requests_[fetcher] = request_id;
     fetcher->SetRequestContext(web_contents()->GetBrowserContext()->
         GetRequestContext());
     fetcher->SetExtraRequestHeaders(headers);
     fetcher->SaveResponseWithWriter(scoped_ptr<net::URLFetcherResponseWriter>(
         new ResponseWriter(weak_factory_.GetWeakPtr(), stream_id)));
     fetcher->Start();
     return;
   } else if (method == "getPreferences") {
     SendMessageAck(request_id, &preferences_);
@@ skipping 100 matching lines @@
   CallClientFunction("DevToolsAPI.embedderMessageAck",
                      &id_value, arg, nullptr);
 }
 
 void ShellDevToolsFrontend::AgentHostClosed(
     DevToolsAgentHost* agent_host, bool replaced) {
   frontend_shell_->Close();
 }
 
 }  // namespace content