Initial script request detector.

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 e4e1bb27c802aa780c4e85b72b79c57926f57560..2739f4165b3a57f8fd7015b5fd8b26c08fa5554e 100644
--- a/chrome/common/safe_browsing/csd.proto
+++ b/chrome/common/safe_browsing/csd.proto
@@ -367,12 +367,17 @@ message ClientIncidentReport {
     message VariationsSeedSignatureIncident {
       optional string variations_seed_signature = 1;
     }
+    message ScriptRequestIncident {
+      optional string script_digest = 1;
+      optional string inclusion_origin = 2;
+    }
     optional int64 incident_time_msec = 1;
     optional TrackedPreferenceIncident tracked_preference = 2;
     optional BinaryIntegrityIncident binary_integrity = 3;
     optional BlacklistLoadIncident blacklist_load = 4;
     // Note: skip tag 5 because it was previously used.
     optional VariationsSeedSignatureIncident variations_seed_signature = 6;
+    optional ScriptRequestIncident script_request = 7;
   }
 
   repeated IncidentData incident = 1;