Record Code Signature of Downloaded DMG files

chrome/utility/safe_browsing/mac/dmg_analyzer.cc

Index: chrome/utility/safe_browsing/mac/dmg_analyzer.cc
diff --git a/chrome/utility/safe_browsing/mac/dmg_analyzer.cc b/chrome/utility/safe_browsing/mac/dmg_analyzer.cc
index 09ebf17f7f483f5229d737a6eae57063acac8fd8..6ba4e583a052a914af6ead56ef9c4a7ddd2a15d0 100644
--- a/chrome/utility/safe_browsing/mac/dmg_analyzer.cc
+++ b/chrome/utility/safe_browsing/mac/dmg_analyzer.cc
@@ -126,6 +126,8 @@ void AnalyzeDMGFile(base::File dmg_file, ArchiveAnalyzerResults* results) {
   if (!iterator.Open())
     return;
 
+  results->signature_blob = iterator.GetCodeSignature();
+
   while (iterator.Next()) {
     std::unique_ptr<ReadStream> stream = iterator.GetReadStream();
     if (!stream || !feature_extractor.IsMachO(stream.get()))