Differentiate new permissions from old in extension permission update bubble

extensions/common/permissions/permissions_data.cc

Index: extensions/common/permissions/permissions_data.cc
diff --git a/extensions/common/permissions/permissions_data.cc b/extensions/common/permissions/permissions_data.cc
index 4025d23c0ff0096e075b60521ae95bb0b0e5675c..83ffa3910acb936ae98a506d4635a102a488454d 100644
--- a/extensions/common/permissions/permissions_data.cc
+++ b/extensions/common/permissions/permissions_data.cc
@@ -223,6 +223,14 @@ PermissionMessages PermissionsData::GetPermissionMessages() const {
           *active_permissions_unsafe_, manifest_type_));
 }
 
+PermissionMessages PermissionsData::GetPermissionMessages(
+    const PermissionSet& permissions) const {
+  base::AutoLock auto_lock(runtime_lock_);
+  return PermissionMessageProvider::Get()->GetPermissionMessages(
+      PermissionMessageProvider::Get()->GetAllPermissionIDs(permissions,
+                                                            manifest_type_));
+}
+
 bool PermissionsData::HasWithheldImpliedAllHosts() const {
   base::AutoLock auto_lock(runtime_lock_);
   // Since we currently only withhold all_hosts, it's sufficient to check