Print preview page selection should not require a rerendering of draft pages.

chrome/renderer/mock_printer.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_RENDERER_MOCK_PRINTER_H_
 #define CHROME_RENDERER_MOCK_PRINTER_H_
 #pragma once
 
 #include <string>
 #include <vector>
@@ skipping 57 matching lines @@
   // Functions that changes settings of a pseudo printer.
   void ResetPrinter();
   void SetDefaultPrintSettings(const PrintMsg_Print_Params& params);
 
   // Functions that handles IPC events.
   void GetDefaultPrintSettings(PrintMsg_Print_Params* params);
   void ScriptedPrint(int cookie,
                      int expected_pages_count,
                      bool has_selection,
                      PrintMsg_PrintPages_Params* settings);
-  void UpdateSettings(int cookie, PrintMsg_PrintPages_Params* params);
+  void UpdateSettings(int cookie, PrintMsg_PrintPages_Params* params,
+                      const std::vector<int>& page_range_array);
   void SetPrintedPagesCount(int cookie, int number_pages);
   void PrintPage(const PrintHostMsg_DidPrintPage_Params& params);
 
   // Functions that retrieve the output pages.
   Status GetPrinterStatus() const { return printer_status_; }
   int GetPrintedPages() const;
 
   // Get a pointer to the printed page, returns NULL if pageno has not been
   // printed.  The pointer is for read only view and should not be deleted.
   const MockPrinterPage* GetPrintedPage(unsigned int pageno) const;
@@ skipping 44 matching lines @@
   // Used only in the preview sequence.
   bool is_first_request_;
   int preview_request_id_;
 
   std::vector<scoped_refptr<MockPrinterPage> > pages_;
 
   DISALLOW_COPY_AND_ASSIGN(MockPrinter);
 };
 
 #endif  // CHROME_RENDERER_MOCK_PRINTER_H_