Add a notice about other forms of history to the CBD dialog

chrome/browser/resources/options/clear_browser_data_overlay.css

 /* Copyright (c) 2012 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. */
 
 #clear-browser-data-overlay {
   width: 500px;
 }
 
 #clear-data-checkboxes {
   -webkit-padding-start: 8px;
@@ skipping 30 matching lines @@
 }
 
 input[type=checkbox]:not(:checked) ~ .clear-browser-data-counter {
   display: none;
 }
 
 #clear-browser-data-info-banner:empty {
   display: none;
 }
 
+#some-stuff-remains-footer {
+  display: block;
+}
+
 #some-stuff-remains-footer > p {
-  margin: 0;
+  -webkit-padding-start: 33px;
 }
 
 #some-stuff-remains-footer button {
   padding: 0;
 }
+
+#clear-browser-data-history-footer {
+  background: url(googleg.svg) left no-repeat;
+  margin: 0 0 0.8em 0;
+  min-height: 16px;
+}
+
+#clear-browser-data-general-footer {
+  background: url(info.svg) left no-repeat;
+  margin: 0;
+  min-height: 18px;
+}
+
+html[dir='rtl'] #clear-browser-data-history-footer,
+html[dir='rtl'] #clear-browser-data-general-footer {
+  background-position: right center;
+}
+
+#clear-browser-data-history-notice {
+  width: 300px;
+}