Makes the omnibox show past searches and suggestions for keywords....

chrome/browser/search_engines/template_url.h

 // Copyright (c) 2006-2008 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.
 
 #ifndef CHROME_BROWSER_TEMPLATE_URL_H__
 #define CHROME_BROWSER_TEMPLATE_URL_H__
 
 #include <vector>
 
 #include "base/basictypes.h"
@@ skipping 232 matching lines @@
     int width;
     int height;
 
     // URL of the image.
     GURL url;
   };
 
   // Generates a favicon URL from the specified url.
   static GURL GenerateFaviconURL(const GURL& url);
 
+  // Returns true if |true| is non-null and has a search URL that supports
+  // replacement.
+  static bool SupportsReplacement(const TemplateURL* turl);
+
   TemplateURL()
       : autogenerate_keyword_(false),
         show_in_default_list_(false),
         safe_for_autoreplace_(false),
         id_(0),
         date_created_(base::Time::Now()),
         usage_count_(0),
         prepopulate_id_(0) {}
   ~TemplateURL() {}
 
@@ skipping 163 matching lines @@
   std::vector<std::string> input_encodings_;
   IDType id_;
   base::Time date_created_;
   int usage_count_;
   int prepopulate_id_;
 
   // TODO(sky): Add date last parsed OSD file.
 };
 
 #endif // CHROME_BROWSER_TEMPLATE_URL_PARSER_H__