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

components/suggestions/suggestions_service.cc

 // 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.
 
 #include "components/suggestions/suggestions_service.h"
 
 #include <string>
 
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop/message_loop_proxy.h"
@@ skipping 201 matching lines @@
       suggestion->set_expiry_ts(default_timestamp_usec);
     }
   }
 }
 
 void SuggestionsService::IssueRequestIfNoneOngoing(const GURL& url) {
   // If there is an ongoing request, let it complete.
   if (pending_request_.get()) {
     return;
   }
-  pending_request_.reset(CreateSuggestionsRequest(url));
+  pending_request_ = CreateSuggestionsRequest(url);
   pending_request_->Start();
   last_request_started_time_ = TimeTicks::Now();
 }
 
-net::URLFetcher* SuggestionsService::CreateSuggestionsRequest(const GURL& url) {
-  net::URLFetcher* request =
+scoped_ptr<net::URLFetcher> SuggestionsService::CreateSuggestionsRequest(
+    const GURL& url) {
+  scoped_ptr<net::URLFetcher> request =
       net::URLFetcher::Create(0, url, net::URLFetcher::GET, this);
   request->SetLoadFlags(net::LOAD_DISABLE_CACHE);
   request->SetRequestContext(url_request_context_);
   // Add Chrome experiment state to the request headers.
   net::HttpRequestHeaders headers;
   variations::VariationsHttpHeaderProvider::GetInstance()->AppendHeaders(
       request->GetOriginalURL(), false, false, &headers);
   request->SetExtraRequestHeaders(headers.ToString());
   return request;
 }
@@ skipping 119 matching lines @@
     scheduling_delay_ = TimeDelta::FromSeconds(kDefaultSchedulingDelaySec);
   } else {
     TimeDelta candidate_delay =
         scheduling_delay_ * kSchedulingBackoffMultiplier;
     if (candidate_delay < TimeDelta::FromSeconds(kSchedulingMaxDelaySec))
       scheduling_delay_ = candidate_delay;
   }
 }
 
 }  // namespace suggestions