Enabled pressing TAB to cycle through the Omnibox results.

chrome/browser/ui/views/location_bar/location_bar_view.cc

 // Copyright (c) 2011 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.
 
 #include "chrome/browser/ui/views/location_bar/location_bar_view.h"
 
 #if defined(OS_LINUX)
 #include <gtk/gtk.h>
 #endif
 
@@ skipping 971 matching lines @@
 }
 
 std::string LocationBarView::GetClassName() const {
   return kViewClassName;
 }
 
 bool LocationBarView::SkipDefaultKeyEventProcessing(
     const views::KeyEvent& event) {
 #if defined(OS_WIN)
   if (views::FocusManager::IsTabTraversalKeyEvent(event)) {
-    if (HasValidSuggestText()) {
-      // Return true so that the edit sees the tab and commits the suggestion.
-      return true;
-    }
-    if (keyword_hint_view_->IsVisible() && !event.IsShiftDown()) {
-      // Return true so the edit gets the tab event and enters keyword mode.
-      return true;
-    }
-
-    // If the caret is not at the end, then tab moves the caret to the end.
-    if (!location_entry_->IsCaretAtEnd())
-      return true;
-
-    // Tab while showing instant commits instant immediately.
-    // Return true so that focus traversal isn't attempted. The edit ends
-    // up doing nothing in this case.
-    if (location_entry_->model()->AcceptCurrentInstantPreview())
-      return true;
+    return location_entry_->model()->popup_model()->IsOpen() ||
+      (keyword_hint_view_->IsVisible() && !event.IsShiftDown());
   }
 
   return location_entry_->SkipDefaultKeyEventProcessing(event);
 #else
   // This method is not used for Linux ports. See FocusManager::OnKeyEvent() in
   // src/views/focus/focus_manager.cc for details.
   return false;
 #endif
 }
 
@@ skipping 165 matching lines @@
   template_url_model_ = NULL;
   ShowFirstRunBubble(bubble_type_);
 }
 
 #if defined(OS_WIN)
 bool LocationBarView::HasValidSuggestText() const {
   return suggested_text_view_ && !suggested_text_view_->size().IsEmpty() &&
       !suggested_text_view_->GetText().empty();
 }
 #endif