Add comments to explain what's going on.

1 files changed, 5 insertions, 1 deletions

diff --git a/lib/completion.js b/lib/completion.js
index c46723c7..165aa86d 100644
--- a/lib/completion.js
+++ b/lib/completion.js
@@ -185,8 +185,11 @@ var completion = (function() {
     });
   }
 
-  /** A domain completer as it is provided by Chrome's omnibox */
+  /*
+   * A completer which matches only domains from sites in your history with the current query.
+   */
   var DomainCompletionSource = Class.extend({
+    // A mapping of doamin => useHttps, where useHttps is a boolean.
     domains: null,
 
     withDomains: function(callback) {
@@ -212,6 +215,7 @@ var completion = (function() {
         self.domains[domain] = !!https;
         delete self.domains['www.' + domain];
       }
+
       function processUrl(url) {
         parts = url.split('/');
         processDomain(parts[2], parts[0] == 'https:');