Add more fields to ClientDownloadRequest

chrome/common/safe_browsing/csd.proto

 // 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.
 //
 // This proto file includes:
 // (1) Client side phishing and malware detection request and response
 //   protocol buffers.  Those protocol messages should be kept in sync
 //   with the server implementation.
 //
 // (2) Safe Browsing reporting protocol buffers.
@@ skipping 362 matching lines @@
 
     // True if this ClientDownloadRequest is from a whitelisted domain.
   optional bool skipped_url_whitelist = 28;
 
   // True if this ClientDownloadRequest contains a whitelisted certificate.
   optional bool skipped_certificate_whitelist = 31;
 
   // PPAPI_SAVE_REQUEST type messages may have more than one suggested filetype.
   // Each element in this collection indicates an alternate extension including
   // the leading extension separator.
-  repeated string alternate_extensions = 32;
+  repeated string alternate_extensions = 35;

[Nathan Parker, 2016/09/08 20:23:25]

Changing the id... I assume this was this never in use?  Is it in use now?

+
+  message URLChainEntry {
+    enum URLType {
+      DOWNLOAD_URL = 1;
+      DOWNLOAD_REFERRER = 2;
+      LANDING_PAGE = 3;
+      LANDING_REFERRER = 4;
+      CLIENT_REDIRECT = 5;
+      SERVER_REDIRECT = 6;
+    }
+
+    // [required] The url of this Entry.
+    optional string url = 1;
+
+    // Type of URLs, such as download url, download referrer, etc.
+    optional URLType type = 2;
+
+    // IP address corresponding to url.
+    optional string ip_address = 3;
+
+    // Referrer url of this entry.
+    optional string referrer = 4;
+
+    // Main frame URL of referrer.
+    optional string main_frame_referrer = 5;
+
+    // If this URL loads in a different tab/frame from previous one.
+    optional bool is_retargeting = 6;
+
+    // If there is a user gesture attached to this transition.
+    optional bool is_user_initiated = 7;
+
+    optional double timestamp_in_millisec = 8;
+  }  // End of URLChainEntry
+
+  // URLs transitions from landing referrer to download in reverse chronological
+  // order, i.e. download url comes first in this list, and landing referrer
+  // comes last.
+  repeated URLChainEntry url_chain = 36;
 }
 
 message ClientDownloadResponse {
   enum Verdict {
     // Download is considered safe.
     SAFE = 0;
     // Download is considered dangerous.  Chrome should show a warning to the
     // user.
     DANGEROUS = 1;
     // Download is uncommon.  Chrome should display a less severe warning.
@@ skipping 397 matching lines @@
   optional bool did_proceed = 8;
 
   // Whether user visited this origin before.
   optional bool repeat_visit = 9;
 
   // The same token in ClientDownloadResponse. This field is only set if its
   // report type is DANGEROUS_DOWNLOAD_RECOVERY, DANGEROUS_DOWNLOAD_WARNING or
   // DANGEROUS_DOWNLOAD_BY_API.
   optional bytes token = 15;
 }