Part 5 of search provider refactoring.

chrome/browser/autocomplete/zero_suggest_provider.h

 // Copyright (c) 2012 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.
 //
 // This file contains the zero-suggest autocomplete provider. This experimental
 // provider is invoked when the user focuses in the omnibox prior to editing,
 // and generates search query suggestions based on the current URL. To enable
 // this provider, point --experimental-zero-suggest-url-prefix at an
 // appropriate suggestion service.
 //
@@ skipping 32 matching lines @@
 // omnibox text and suggestions.
 class ZeroSuggestProvider : public BaseSearchProvider {
  public:
   // Creates and returns an instance of this provider.
   static ZeroSuggestProvider* Create(AutocompleteProviderListener* listener,
                                      Profile* profile);
 
   // AutocompleteProvider:
   virtual void Start(const AutocompleteInput& input,
                      bool /*minimal_changes*/) OVERRIDE;
-  virtual void Stop(bool clear_cached_results) OVERRIDE;
 
   // Sets |field_trial_triggered_| to false.
   virtual void ResetSession() OVERRIDE;
 
   // net::URLFetcherDelegate
   virtual void OnURLFetchComplete(const net::URLFetcher* source) OVERRIDE;
 
   // Initiates a new fetch for the given |url| of classification
   // |page_classification|. |permanent_text| is the omnibox text
   // for the current page.
   void StartZeroSuggest(
       const GURL& curent_page_url,
       AutocompleteInput::PageClassification page_classification,
       const base::string16& permanent_text);
 
  private:
   ZeroSuggestProvider(AutocompleteProviderListener* listener,
                       Profile* profile);
 
   virtual ~ZeroSuggestProvider();
 
   // BaseSearchProvider:
   virtual const TemplateURL* GetTemplateURL(
       const SuggestResult& result) const OVERRIDE;
   virtual const AutocompleteInput GetInput(
       const SuggestResult& result) const OVERRIDE;
   virtual bool ShouldAppendExtraParams(
       const SuggestResult& result) const OVERRIDE;
+  virtual void StopSuggest() OVERRIDE;
+  virtual void ClearAllResults() OVERRIDE;
 
   // The 4 functions below (that take classes defined in SearchProvider as
   // arguments) were copied and trimmed from SearchProvider.
   // TODO(hfung): Refactor them into a new base class common to both
   // ZeroSuggestProvider and SearchProvider.
 
   // From the OpenSearch formatted response |root_val|, populate query
   // suggestions into |suggest_results|, navigation suggestions into
   // |navigation_results|, and the verbatim relevance score into
   // |verbatim_relevance|.
@@ skipping 60 matching lines @@
 
   history::MostVisitedURLList most_visited_urls_;
 
   // For callbacks that may be run after destruction.
   base::WeakPtrFactory<ZeroSuggestProvider> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ZeroSuggestProvider);
 };
 
 #endif  // CHROME_BROWSER_AUTOCOMPLETE_ZERO_SUGGEST_PROVIDER_H_