Add a feature which, when enabled, blocks permissions after X prompt dismissals.

chrome/browser/permissions/permission_request_impl.cc

Index: chrome/browser/permissions/permission_request_impl.cc
diff --git a/chrome/browser/permissions/permission_request_impl.cc b/chrome/browser/permissions/permission_request_impl.cc
index 4faf00eb8e78c14f7a3cce54760b15172c5f94a7..feb02d3af6353ba849f244936d76bc8f6602fbd6 100644
--- a/chrome/browser/permissions/permission_request_impl.cc
+++ b/chrome/browser/permissions/permission_request_impl.cc
@@ -5,7 +5,7 @@
 #include "chrome/browser/permissions/permission_request_impl.h"
 
 #include "build/build_config.h"
-#include "chrome/browser/permissions/permission_context_base.h"
+#include "chrome/browser/permissions/permission_decision_auto_blocker.h"
 #include "chrome/browser/permissions/permission_uma_util.h"
 #include "chrome/grit/generated_resources.h"
 #include "components/url_formatter/elide_url.h"
@@ -33,6 +33,9 @@ PermissionRequestImpl::PermissionRequestImpl(
 PermissionRequestImpl::~PermissionRequestImpl() {
   DCHECK(is_finished_);
   if (!action_taken_) {
+    PermissionDecisionAutoBlocker(profile_).RecordIgnore(request_origin_,
+                                                         permission_type_);
+
     PermissionUmaUtil::PermissionIgnored(permission_type_, GetGestureType(),
                                          request_origin_, profile_);
   }