Cleanup: Remove unneeded forward declarations from various chrome/browser subdirectories.

chrome/browser/search_engines/template_url_service.h

 // 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.
 
 #ifndef CHROME_BROWSER_SEARCH_ENGINES_TEMPLATE_URL_SERVICE_H_
 #define CHROME_BROWSER_SEARCH_ENGINES_TEMPLATE_URL_SERVICE_H_
 #pragma once
 
 #include <map>
 #include <set>
 #include <string>
 #include <vector>
 
 #include "base/gtest_prod_util.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/observer_list.h"
 #include "chrome/browser/profiles/profile_keyed_service.h"
 #include "chrome/browser/search_engines/search_host_to_urls_map.h"
 #include "chrome/browser/search_engines/template_url_id.h"
 #include "chrome/browser/sync/api/sync_change.h"
 #include "chrome/browser/sync/api/syncable_service.h"
 #include "chrome/browser/webdata/web_data_service.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 
+class Extension;
 class GURL;
-class Extension;
 class PrefService;
+class PrefSetObserver;
 class Profile;
-class PrefSetObserver;
 class SearchHostToURLsMap;
 class SearchTermsData;
 class SyncData;
 class TemplateURLServiceObserver;
-class TemplateURLRef;
 
 namespace history {
 struct URLVisitedDetails;
 }
 
 // TemplateURLService is the backend for keywords. It's used by
 // KeywordAutocomplete.
 //
 // TemplateURLService stores a vector of TemplateURLs. The TemplateURLs are
 // persisted to the database maintained by WebDataService. *ALL* mutations
@@ skipping 365 matching lines @@
 
   // If necessary, generates a visit for the site http:// + t_url.keyword().
   void AddTabToSearchVisit(const TemplateURL& t_url);
 
   // Adds each of the query terms in the specified url whose key and value are
   // non-empty to query_terms. If a query key appears multiple times, the value
   // is set to an empty string. Returns true if there is at least one key that
   // does not occur multiple times.
   static bool BuildQueryTerms(
       const GURL& url,
-      std::map<std::string,std::string>* query_terms);
+      std::map<std::string, std::string>* query_terms);
 
   // Invoked when the Google base URL has changed. Updates the mapping for all
   // TemplateURLs that have a replacement term of {google:baseURL} or
   // {google:baseSuggestURL}.
   void GoogleBaseURLChanged();
 
   // Update the default search.  Called at initialization or when a managed
   // preference has changed.
   void UpdateDefaultSearch();
 
@@ skipping 157 matching lines @@
   // from Sync. This is to facilitate the fact that changes to the value of
   // prefs::kSyncedDefaultSearchProviderGUID do not always come before the
   // TemplateURL entry it refers to, and to handle the case when we want to use
   // the Synced default when the default search provider becomes unmanaged.
   bool pending_synced_default_search_;
 
   DISALLOW_COPY_AND_ASSIGN(TemplateURLService);
 };
 
 #endif  // CHROME_BROWSER_SEARCH_ENGINES_TEMPLATE_URL_SERVICE_H_