Add support for printing selection only flag. This only adds the flag to the ...

chrome/browser/printing/print_settings.h

 // Copyright (c) 2006-2008 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_PRINTING_PRINT_SETTINGS_H__
 #define CHROME_BROWSER_PRINTING_PRINT_SETTINGS_H__
 
 #include "base/gfx/rect.h"
 #include "chrome/browser/printing/page_overlays.h"
 #include "chrome/browser/printing/page_range.h"
@@ skipping 12 matching lines @@
 
   // Reinitialize the settings to the default values.
   void Clear();
 
 #ifdef WIN32
   // Reads the settings from the selected device context. Calculates derived
   // values like printable_area_.
   void Init(HDC hdc,
             const DEVMODE& dev_mode,
             const PageRanges& new_ranges,
-            const std::wstring& new_device_name);
+            const std::wstring& new_device_name,
+            bool selection_only);
 #endif
 
   // Set printer printable area in in pixels.
   void SetPrinterPrintableArea(gfx::Size const& physical_size_pixels,
                                gfx::Rect const& printable_area_pixels);
 
   // Initializes the print parameters that needs to be sent to the renderer
   // process.
   void RenderParams(ViewMsg_Print_Params* params) const;
 
@@ skipping 27 matching lines @@
   // behavior matches MacIE and Mozilla, at least)
   double max_shrink;
 
   // Desired visible dots per inch rendering for output. Printing should be
   // scaled to ScreenDpi/dpix*desired_dpi.
   int desired_dpi;
 
   // The various overlays (headers and footers).
   PageOverlays overlays;
 
+  // Indicates if the user only wants to print the current selection.
+  bool selection_only;
+
   // Cookie generator. It is used to initialize PrintedDocument with its
   // associated PrintSettings, to be sure that each generated PrintedPage is
   // correctly associated with its corresponding PrintedDocument.
   static int NewCookie();
 
  private:
   //////////////////////////////////////////////////////////////////////////////
   // Settings that can't be changed without side-effects.
 
   // Printer name as shown to the user.
   std::wstring printer_name_;
 
   // Printer device name as opened by the OS.
   std::wstring device_name_;
 
   // Page setup in pixel units, dpi adjusted.
   PageSetup page_setup_pixels_;
 
   // Printer's device effective dots per inch in both axis.
   int dpi_;
 
   // Is the orientation landscape or portrait.
   bool landscape_;
 };
 
 }  // namespace printing
 
 #endif  // CHROME_BROWSER_PRINTING_PRINT_SETTINGS_H__