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

ios/chrome/browser/safe_browsing/ping_manager.cc

 // Copyright 2015 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 "ios/chrome/browser/safe_browsing/ping_manager.h"
 
 #include <utility>
 
 #include "base/logging.h"
 #include "base/stl_util.h"
@@ skipping 116 matching lines @@
   safebrowsing_reports_.insert(fetcher);
 }
 
 void SafeBrowsingPingManager::ReportInvalidCertificateChain(
     const std::string& serialized_report) {
   DCHECK(certificate_error_reporter_);
   certificate_error_reporter_->SendExtendedReportingReport(serialized_report);
 }
 
 void SafeBrowsingPingManager::SetCertificateErrorReporterForTesting(
-    scoped_ptr<certificate_reporting::ErrorReporter>
+    std::unique_ptr<certificate_reporting::ErrorReporter>
         certificate_error_reporter) {
   certificate_error_reporter_ = std::move(certificate_error_reporter);
 }
 
 GURL SafeBrowsingPingManager::SafeBrowsingHitUrl(
     const safe_browsing::HitReport& hit_report) const {
   DCHECK(hit_report.threat_type == SB_THREAT_TYPE_URL_MALWARE ||
          hit_report.threat_type == SB_THREAT_TYPE_URL_PHISHING ||
          hit_report.threat_type == SB_THREAT_TYPE_URL_UNWANTED ||
          hit_report.threat_type == SB_THREAT_TYPE_BINARY_MALWARE_URL ||
@@ skipping 61 matching lines @@
       url_prefix_.c_str(), client_name_.c_str(), version_.c_str());
   std::string api_key = google_apis::GetAPIKey();
   if (!api_key.empty()) {
     base::StringAppendF(&url, "&key=%s",
                         net::EscapeQueryParamValue(api_key, true).c_str());
   }
   return GURL(url);
 }
 
 }  // namespace safe_browsing