If we remove a search engine from our prepopulate data, remove it from the us...

chrome/browser/search_engines/template_url_model.h

 // Copyright (c) 2009 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_MODEL_H__
 #define CHROME_BROWSER_TEMPLATE_URL_MODEL_H__
 
 #include <set>
 
 #include "base/observer_list.h"
@@ skipping 194 matching lines @@
   // This exists and is virtual for testing.
   virtual void SetKeywordSearchTermsForURL(const TemplateURL* t_url,
                                            const GURL& url,
                                            const std::wstring& term);
 
  private:
   FRIEND_TEST(TemplateURLModelTest, BuildQueryTerms);
   FRIEND_TEST(TemplateURLModelTest, UpdateKeywordSearchTermsForURL);
   FRIEND_TEST(TemplateURLModelTest, DontUpdateKeywordSearchForNonReplaceable);
   FRIEND_TEST(TemplateURLModelTest, ChangeGoogleBaseValue);
+  FRIEND_TEST(TemplateURLModelTest, MergeDeletesUnusedProviders);
   friend class TemplateURLModelTest;
 
   typedef std::map<std::wstring, const TemplateURL*> KeywordToTemplateMap;
   typedef std::vector<const TemplateURL*> TemplateURLVector;
   typedef std::set<const TemplateURL*> TemplateURLSet;
   typedef std::map<std::string, TemplateURLSet> HostToURLsMap;
 
   // Helper functor for FindMatchingKeywords(), for finding the range of
   // keywords which begin with a prefix.
   class LessWithPrefix;
@@ skipping 119 matching lines @@
   scoped_ptr<TemplateURL> prefs_default_search_provider_;
 
   // ID assigned to next TemplateURL added to this model. This is an ever
   // increasing integer that is initialized from the database.
   TemplateURL::IDType next_id_;
 
   DISALLOW_EVIL_CONSTRUCTORS(TemplateURLModel);
 };
 
 #endif  // CHROME_BROWSER_TEMPLATE_URL_MODEL_H__