Minimize flicker by adding a   to nodes that will have

ui/webui/resources/css/i18n_process.css

Index: ui/webui/resources/css/i18n_process.css
diff --git a/ui/webui/resources/css/i18n_process.css b/ui/webui/resources/css/i18n_process.css
new file mode 100644
index 0000000000000000000000000000000000000000..44ca4b2ed20de5e2d8449cbbc925778f2d39bdf8
--- /dev/null
+++ b/ui/webui/resources/css/i18n_process.css
@@ -0,0 +1,9 @@
+/* Copyright 2015 The Chromium Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file. */
+
+html:not(.i18n-processed) [i18n-content]::before,

[Dan Beam, 2015/04/11 00:48:32]

change to ::before to avoid conflicting with uber page h1::after

+html:not(.i18n-processed) [i18n-values*=".innerHTML:"]::before {
+  /* Insert a non-breaking space into nodes that have i18n'd content. */
+  content: '\00a0';
+}