History: Add range navigation control for grouped visits

chrome/browser/ui/webui/history_ui.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.
 
 #ifndef CHROME_BROWSER_UI_WEBUI_HISTORY_UI_H_
 #define CHROME_BROWSER_UI_WEBUI_HISTORY_UI_H_
 
 #include <string>
 
 #include "base/string16.h"
@@ skipping 74 matching lines @@
   // Callback from the history system when visits were deleted.
   void RemoveComplete();
 
   // Callback from history server when visits were deleted.
   void RemoveWebHistoryComplete(history::WebHistoryService::Request* request,
                                 bool success);
 
   bool ExtractIntegerValueAtIndex(
       const base::ListValue* value, int index, int* out_int);
 
-  // Set the query options for a month-wide query.
-  void SetQueryTimeInMonths(history::QueryOptions* options);
+  // Set the query options for a week-wide query, |offset| weeks ago.
+  void SetQueryTimeInWeeks(int offset, history::QueryOptions* options);
 
-  // Set the query options for a week-wide query.
-  void SetQueryTimeInWeeks(history::QueryOptions* options);
+  // Sets the query options for a monthly query, |offset| months ago.
+  void SetQueryTimeInMonths(int offset, history::QueryOptions* options);
 
   content::NotificationRegistrar registrar_;
 
   // Consumer for search requests to the history service.
   CancelableRequestConsumerT<int, 0> history_request_consumer_;
 
   // The currently-executing request for synced history results.
   // Deleting the request will cancel it.
   scoped_ptr<history::WebHistoryService::Request> web_history_request_;
 
@@ skipping 27 matching lines @@
   static const GURL GetHistoryURLWithSearchText(const string16& text);
 
   static base::RefCountedMemory* GetFaviconResourceBytes(
       ui::ScaleFactor scale_factor);
 
  private:
   DISALLOW_COPY_AND_ASSIGN(HistoryUI);
 };
 
 #endif  // CHROME_BROWSER_UI_WEBUI_HISTORY_UI_H_