Allow the default search providers to be specified by the preferences files,...

chrome/browser/search_engines/template_url_prepopulate_data.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_SEARCH_ENGINES_TEMPLATE_URL_PREPOPULATE_DATA_H_
 #define CHROME_BROWSER_SEARCH_ENGINES_TEMPLATE_URL_PREPOPULATE_DATA_H_
 
 #include <vector>
 
 class PrefService;
@@ skipping 14 matching lines @@
     SEARCH_ENGINE_CENTRUM,
     SEARCH_ENGINE_NETSPRINT,
     SEARCH_ENGINE_VIRGILIO,
     SEARCH_ENGINE_MAILRU,
     SEARCH_ENGINE_MAX  // Bounding max value needed for UMA histogram macro.
 };
 
 void RegisterUserPrefs(PrefService* prefs);
 
 // Returns the current version of the prepopulate data, so callers can know when
-// they need to re-merge.
-int GetDataVersion();
+// they need to re-merge. If the prepopulate data comes from the preferences
+// file then it returns the version specified there.
+int GetDataVersion(PrefService* prefs);
 
 // Loads the set of TemplateURLs from the prepopulate data.  Ownership of the
 // TemplateURLs is passed to the caller.  On return,
 // |default_search_provider_index| is set to the index of the default search
 // provider.
 void GetPrepopulatedEngines(PrefService* prefs,
                             std::vector<TemplateURL*>* t_urls,
                             size_t* default_search_provider_index);
 
 // Returns the type of the search engine to be recorded in UMA. The type
 // is determined by mapping the search engine's |id| to the set of search
 // engines we are interested in. Because this is only a temporary test
 // for a small set of search engines, we use this simple switch statement
 // instead of embedding a UMA type as part of the struct of every search
 // engine.
 SearchEngineType GetSearchEngineType(const TemplateURL* search_engine);
 
 }  // namespace TemplateURLPrepopulateData
 
 #endif  // CHROME_BROWSER_SEARCH_ENGINES_TEMPLATE_URL_PREPOPULATE_DATA_H_