Add management related code to SafeBrowsingNavigationObserverManager

chrome/common/safe_browsing/csd.proto

Index: chrome/common/safe_browsing/csd.proto
diff --git a/chrome/common/safe_browsing/csd.proto b/chrome/common/safe_browsing/csd.proto
index ce779caed7efee915159bd625a6394ceddf7bcde..c98152aae1a51efa35eeddf5e3f7a75f5d311e0b 100644
--- a/chrome/common/safe_browsing/csd.proto
+++ b/chrome/common/safe_browsing/csd.proto
@@ -382,45 +382,41 @@ message ClientDownloadRequest {
   // the leading extension separator.
   repeated string alternate_extensions = 35;
 
-  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;
+  // 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 ReferrerChainEntry referrer_chain = 36;
+}
 
-    // Type of URLs, such as download url, download referrer, etc.
-    optional URLType type = 2;
+message ReferrerChainEntry {
+  enum URLType {
+    DOWNLOAD_URL = 1;
+    LANDING_PAGE = 2;
+    LANDING_REFERRER = 3;
+    CLIENT_REDIRECT = 4;
+    SERVER_REDIRECT = 5;
+  }
 
-    // IP address corresponding to url.
-    optional string ip_address = 3;
+  // [required] The url of this Entry.
+  optional string url = 1;
 
-    // Referrer url of this entry.
-    optional string referrer = 4;
+  // Type of URLs, such as download url, download referrer, etc.
+  optional URLType type = 2;
 
-    // Main frame URL of referrer.
-    optional string main_frame_referrer = 5;
+  // IP addresses corresponding to this host.
+  repeated string ip_addresses = 3;
 
-    // If this URL loads in a different tab/frame from previous one.
-    optional bool is_retargeting = 6;
+  // Referrer url of this entry.
+  optional string referrer_url = 4;
 
-    // If there is a user gesture attached to this transition.
-    optional bool is_user_initiated = 7;
+  // Main frame URL of referrer.
+  optional string referrer_main_frame_url = 5;
 
-    optional double timestamp_in_millisec = 8;
-  }  // End of URLChainEntry
+  // If this URL loads in a different tab/frame from previous one.
+  optional bool is_retargeting = 6;
 
-  // 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;
-}
+  optional double navigation_time_msec = 7;
+}  // End of URLChainEntry
 
 message ClientDownloadResponse {
   enum Verdict {