Add first batch of controlled setting indicators

chrome/browser/resources/options/home_page_overlay.css

Index: chrome/browser/resources/options/home_page_overlay.css
diff --git a/chrome/browser/resources/options/home_page_overlay.css b/chrome/browser/resources/options/home_page_overlay.css
index bcece11b089afbf7bae5d0aec5ef923c8920b505..3fdd44a875677821563d756bba7d6bceec8e96fb 100644
--- a/chrome/browser/resources/options/home_page_overlay.css
+++ b/chrome/browser/resources/options/home_page_overlay.css
@@ -2,8 +2,12 @@
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file. */
 
+#homepage-url-line {
+  -webkit-box-align: center;
+  display: -webkit-box;
+}
+
 #homepage-url-field {
-  display: inline-block;
+  display: block;
   margin-left: 10px;
-  width: 225px;
 }