Implement Connector::ApplySpec() & use to enforce navigation:frame

content/browser/renderer_host/render_process_host_impl.cc

Index: content/browser/renderer_host/render_process_host_impl.cc
diff --git a/content/browser/renderer_host/render_process_host_impl.cc b/content/browser/renderer_host/render_process_host_impl.cc
index ed09e523ed9f716db9d43a9582ce8add78ac52bb..9f5dc34e7d82c9629a3268b4234440a45ca9287d 100644
--- a/content/browser/renderer_host/render_process_host_impl.cc
+++ b/content/browser/renderer_host/render_process_host_impl.cc
@@ -1398,6 +1398,11 @@ void RenderProcessHostImpl::BindInterface(
   child_connection_->BindInterface(interface_name, std::move(interface_pipe));
 }
 
+const service_manager::Identity& RenderProcessHostImpl::GetChildIdentity()
+    const {
+  return child_connection_->child_identity();
+}
+
 std::unique_ptr<base::SharedPersistentMemoryAllocator>
 RenderProcessHostImpl::TakeMetricsAllocator() {
   return std::move(metrics_allocator_);