Add UMA for recording embargo reasons and autoblocker interactions.

chrome/browser/permissions/permission_uma_util.h

Index: chrome/browser/permissions/permission_uma_util.h
diff --git a/chrome/browser/permissions/permission_uma_util.h b/chrome/browser/permissions/permission_uma_util.h
index 61a08d9356ef7a2adfeed6bfc62eed93bfdae058..82a947baf31fecb87346e7418784ae2c62da8cac 100644
--- a/chrome/browser/permissions/permission_uma_util.h
+++ b/chrome/browser/permissions/permission_uma_util.h
@@ -65,6 +65,15 @@ struct PermissionReportInfo {
   int num_prior_ignores;
 };
 
+enum PermissionEmbargoStatus {
+  NOT_EMBARGOED = 0,
+  BLACKLISTED = 1,
+  REPEATED_DISMISSALS = 2,
+
+  // Keep this at the end.
+  STATUS_NUM,
+};
+
 // Provides a convenient way of logging UMA for permission related operations.
 class PermissionUmaUtil {
  public:
@@ -114,6 +123,8 @@ class PermissionUmaUtil {
                                 PermissionSourceUI source_ui,
                                 const GURL& revoked_origin,
                                 Profile* profile);
+  static void RecordPermissionEmbargoStatus(
+      PermissionEmbargoStatus embargo_status);
 
   // UMA specifically for when permission prompts are shown. This should be
   // roughly equivalent to the metrics above, however it is