Delete obviously unneeded forward declarations in chrome/browser/*.h.

chrome/browser/remove_rows_table_model.h

 // Copyright (c) 2010 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_REMOVE_ROWS_TABLE_MODEL_H_
 #define CHROME_BROWSER_REMOVE_ROWS_TABLE_MODEL_H_
 #pragma once
 
 #include <set>
-#include <vector>
 
 #include "app/table_model.h"
 
 // A table model that also supports removing rows. Used for example for the
 // content settings exception dialog for geolocation.
 class RemoveRowsTableModel : public TableModel {
  public:
   typedef std::set<size_t> Rows;
 
   // Returns whether or not the rows can be removed.
   virtual bool CanRemoveRows(const Rows& rows) const = 0;
 
   // Remove the rows from the table.
   virtual void RemoveRows(const Rows& rows) = 0;
 
   // Removes all the rows.
   virtual void RemoveAll() = 0;
 };
 
 #endif  // CHROME_BROWSER_REMOVE_ROWS_TABLE_MODEL_H_