Reduce generic warnings shown on dmg downloads

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 723 matching lines @@
                                   uma_file_type);
     } else {
       UMA_HISTOGRAM_SPARSE_SLOWLY(
           "SBClientDownload.DmgFileHasNoExecutableByType", uma_file_type);
     }
 
     UMA_HISTOGRAM_TIMES("SBClientDownload.ExtractDmgFeaturesTime",
                         base::TimeTicks::Now() - dmg_analysis_start_time_);
 
     if (!archived_executable_) {
-      if (!results.success && CanReportInvalidArchives()) {
+      if (!results.success) {
         type_ = ClientDownloadRequest::INVALID_MAC_ARCHIVE;
       } else {
-        PostFinishTask(UNKNOWN, REASON_ARCHIVE_WITHOUT_BINARIES);
+        PostFinishTask(SAFE, REASON_ARCHIVE_WITHOUT_BINARIES);
         return;
       }
     }
 
     OnFileFeatureExtractionDone();
   }
 #endif  // defined(OS_MACOSX)
 
   enum WhitelistType {
     NO_WHITELIST_MATCH,
@@ skipping 960 matching lines @@
 GURL DownloadProtectionService::GetDownloadRequestUrl() {
   GURL url(kDownloadRequestUrl);
   std::string api_key = google_apis::GetAPIKey();
   if (!api_key.empty())
     url = url.Resolve("?key=" + net::EscapeQueryParamValue(api_key, true));
 
   return url;
 }
 
 }  // namespace safe_browsing