Field trial removing tiles from NTP if URL is already open - for 1993 clients

chrome/browser/ui/search/instant_controller.h

 // Copyright 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.
 
 #ifndef CHROME_BROWSER_UI_SEARCH_INSTANT_CONTROLLER_H_
 #define CHROME_BROWSER_UI_SEARCH_INSTANT_CONTROLLER_H_
 
 #include <list>
 #include <string>
 #include <utility>
@@ skipping 424 matching lines @@
 
   // Populates InstantAutocompleteResult with AutocompleteMatch details.
   // |autocomplete_match_index| specifies the index of |match| in the
   // AutocompleteResult. If the |match| is obtained from auto complete
   // providers, then the |autocomplete_match_index| is set to kNoMatchIndex.
   void PopulateInstantAutocompleteResultFromMatch(
       const AutocompleteMatch& match,
       size_t autocomplete_match_index,
       InstantAutocompleteResult* result);
 
+  // Experiment that removes recommended URLs if a matching URL is already open
+  // in the Browser.

[beaudoin, 2013/06/20 21:55:44]

Rephrase: Removes recommended URLs ... if the relevant experiment is enabled.

[annark1, 2013/07/04 18:29:15]

Done.

+  void MaybeRemoveMostVisitedItems(std::vector<InstantMostVisitedItem>* items);
+
   BrowserInstantController* const browser_;
 
   // Whether the extended API and regular API are enabled. If both are false,
   // Instant is effectively disabled.
   const bool extended_enabled_;
   bool instant_enabled_;
 
   // If true, the Instant URL is set to kChromeSearchLocalNtpUrl.
   bool use_local_page_only_;
 
@@ skipping 88 matching lines @@
   // MODE_SEARCH_SUGGESTIONS, except in those cases where this is false.
   bool allow_overlay_to_show_search_suggestions_;
 
   // List of events and their timestamps, useful in debugging Instant behaviour.
   mutable std::list<std::pair<int64, std::string> > debug_events_;
 
   DISALLOW_COPY_AND_ASSIGN(InstantController);
 };
 
 #endif  // CHROME_BROWSER_UI_SEARCH_INSTANT_CONTROLLER_H_