Refrain from sending hit report when user is in incognito mode

chrome/browser/safe_browsing/download_protection_service.cc

 // Copyright (c) 2012 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 "chrome/browser/safe_browsing/download_protection_service.h"
 
 #include <stddef.h>
 
 #include <memory>
 
@@ skipping 271 matching lines @@
     hit_report.is_subresource = true;
     hit_report.threat_type = threat_type;
     // TODO(nparker) Replace this with database_manager_->GetThreatSource();
     hit_report.threat_source = safe_browsing::ThreatSource::LOCAL_PVER3;
     // TODO(nparker) Populate hit_report.population_id once Pver4 is used here.
     hit_report.post_data = post_data;
     hit_report.extended_reporting_level = extended_reporting_level_;
     hit_report.is_metrics_reporting_active =
         ChromeMetricsServiceAccessor::IsMetricsAndCrashReportingEnabled();
 
-    ui_manager_->MaybeReportSafeBrowsingHit(hit_report);
+    ui_manager_->MaybeReportSafeBrowsingHit(hit_report,
+                                            item_->GetWebContents());
   }
 
   void IdentifyReferrerChain() {
     DCHECK_CURRENTLY_ON(BrowserThread::UI);
     if (!item_)
       return;
 
     item_->SetUserData(
         kDownloadReferrerChainDataKey,
         base::MakeUnique<ReferrerChainData>(service_->IdentifyReferrerChain(
@@ skipping 1687 matching lines @@
           out_request->mutable_referrer_chain());
   UMA_HISTOGRAM_COUNTS_100(
       "SafeBrowsing.ReferrerURLChainSize.PPAPIDownloadAttribution",
       out_request->referrer_chain_size());
   UMA_HISTOGRAM_ENUMERATION(
       "SafeBrowsing.ReferrerAttributionResult.PPAPIDownloadAttribution", result,
       SafeBrowsingNavigationObserverManager::ATTRIBUTION_FAILURE_TYPE_MAX);
 }
 
 }  // namespace safe_browsing