Settings: Make 'edit' button in autofill setting not mouse-focusable.

chrome/browser/resources/options/autofill_options_list.js

Index: chrome/browser/resources/options/autofill_options_list.js
diff --git a/chrome/browser/resources/options/autofill_options_list.js b/chrome/browser/resources/options/autofill_options_list.js
index 2e16a8f15ae09cd4e586ede77b192f0e7ea26478..c36c98a4df0a94d89c5e5bbc9c8f52961b3e1c5b 100644
--- a/chrome/browser/resources/options/autofill_options_list.js
+++ b/chrome/browser/resources/options/autofill_options_list.js
@@ -15,9 +15,11 @@ cr.define('options.autofillOptions', function() {
         loadTimeData.getString('autofillEditProfileButton');
     editButtonEl.onclick = function(e) { edit(guid); };
 
-    // Don't select the row when clicking the button.
     editButtonEl.onmousedown = function(e) {
+      // Don't select the row when clicking the button.
       e.stopPropagation();
+      // Don't focus on the button when clicking it.
+      e.preventDefault();
     };
 
     return editButtonEl;