Add interstitial info to certificate reports

chrome/browser/net/cert_logger.proto

Index: chrome/browser/net/cert_logger.proto
diff --git a/chrome/browser/net/cert_logger.proto b/chrome/browser/net/cert_logger.proto
index b42c5df7d5054c04d59d569322ddb5eacc0295b3..b238a8f6338974e69d52fc73a0220cf58f87e716 100644
--- a/chrome/browser/net/cert_logger.proto
+++ b/chrome/browser/net/cert_logger.proto
@@ -23,6 +23,14 @@ package chrome_browser_net;
 option optimize_for = LITE_RUNTIME;
 
 // Protocol types
+
+message InterstitialInfo {
+  optional uint32 validation_result = 1;
+  optional uint32 interstitial_reason = 2;
+  optional bool user_proceeded = 3;
+  optional bool overridable = 4;
+}
+
 message CertLoggerRequest {
   // The hostname being accessed (required as the cert could be valid for
   // multiple hosts, e.g. a wildcard or a SubjectAltName.
@@ -39,6 +47,8 @@ message CertLoggerRequest {
   // pin contains the string forms of the pins that were matched against for
   // this host.
   repeated string pin = 5;
+
+  optional InterstitialInfo interstitial_info = 6;
 };
 
 // The response sent back to the user.