Enabled pressing TAB to cycle through the Omnibox results.

chrome/browser/autocomplete/autocomplete_match.cc

Index: chrome/browser/autocomplete/autocomplete_match.cc
===================================================================
--- chrome/browser/autocomplete/autocomplete_match.cc	(revision 79782)
+++ chrome/browser/autocomplete/autocomplete_match.cc	(working copy)
@@ -106,6 +106,29 @@
 }
 
 // static
+bool AutocompleteMatch::NormalizedSortFunc(const AutocompleteMatch& elem1,
+                                            const AutocompleteMatch& elem2) {
+  // Sort identical normalized_urls together.  Place the most relevant matches
+  // first, so that when we call std::unique(), these are the ones that get
+  // preserved.
+  return (elem1.normalized_url != elem2.normalized_url) ?
+    (elem1.normalized_url < elem2.normalized_url) :
+    MoreRelevant(elem1, elem2);
+}
+
+// static
+bool AutocompleteMatch::NormalizedEqual(const AutocompleteMatch& elem1,
+                                          const AutocompleteMatch& elem2) {
+  return elem1.normalized_url == elem2.normalized_url;
+}
+
+// static
+bool AutocompleteMatch::KeywordsEqual(const AutocompleteMatch& elem1,
+                                     const AutocompleteMatch& elem2) {
+  return elem1.keyword == elem2.keyword;
+}
+
+// static
 void AutocompleteMatch::ClassifyMatchInString(
     const string16& find_text,
     const string16& text,
@@ -151,6 +174,26 @@
   }
 }
 
+
+void AutocompleteMatch::NormalizeDestination() {
+  static const char prefix[] = "www.";
+  static const int prefix_len = strlen(prefix);
+
+  if (destination_url.is_valid() && normalized_url.is_empty()) {

[Peter Kasting, 2011/04/01 00:09:09]

Nit: I would combine this check with the compare() call, so that for invalid
destinations we just copy the destination to the normalized URL.

+    std::string host = destination_url.host();
+
+    if (host.compare(0, prefix_len, prefix) == 0) {
+      host.erase(0, prefix_len);

[Peter Kasting, 2011/04/01 00:09:09]

Nit: You can eliminate this and use host.substr(...) in the SetHostStr() call
below.

+
+      GURL::Replacements replace_host;
+      replace_host.SetHostStr(host);
+      normalized_url = destination_url.ReplaceComponents(replace_host);
+    } else {
+      normalized_url = destination_url;
+    }
+  }
+}
+
 #ifndef NDEBUG
 void AutocompleteMatch::Validate() const {
   ValidateClassifications(contents, contents_class);