Include the HTTP status code as a feature in the ClientPhishingRequest.

chrome/browser/safe_browsing/browser_feature_extractor.cc

Index: chrome/browser/safe_browsing/browser_feature_extractor.cc
diff --git a/chrome/browser/safe_browsing/browser_feature_extractor.cc b/chrome/browser/safe_browsing/browser_feature_extractor.cc
index 7663551e203ac55b0cff8b0b35394373b5973c2a..1b11a7f4948a05a3200a3f1e96b274e7bfeb344c 100644
--- a/chrome/browser/safe_browsing/browser_feature_extractor.cc
+++ b/chrome/browser/safe_browsing/browser_feature_extractor.cc
@@ -28,7 +28,7 @@
 
 namespace safe_browsing {
 
-BrowseInfo::BrowseInfo() {}
+BrowseInfo::BrowseInfo() : http_status_code(0) {}
 
 BrowseInfo::~BrowseInfo() {}
 
@@ -232,7 +232,9 @@ void BrowserFeatureExtractor::ExtractBrowseInfoFeatures(
                static_cast<double>(info.unsafe_resource->threat_type),
                request);
   }
-
+  if (info.http_status_code != 0) {
+    AddFeature(features::kHttpStatusCode, info.http_status_code, request);
+  }
 }
 
 void BrowserFeatureExtractor::StartExtractFeatures(