Add printing.dll to the component build.

printing/print_settings_initializer_win.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 PRINTING_PRINTING_SETTINGS_INITIALIZER_WIN_H_
 #define PRINTING_PRINTING_SETTINGS_INITIALIZER_WIN_H_
 
 #include <string>
 
 #include "base/logging.h"
 #include "printing/page_range.h"
 
 typedef struct HDC__* HDC;
 typedef struct _devicemodeW DEVMODE;
 
 namespace printing {
 
 class PrintSettings;
 
 // Initializes a PrintSettings object from the provided device context.
-class PrintSettingsInitializerWin {
+class PRINTING_EXPORT PrintSettingsInitializerWin {
  public:
   static void InitPrintSettings(HDC hdc,
                                 const DEVMODE& dev_mode,
                                 const PageRanges& new_ranges,
                                 const std::wstring& new_device_name,
                                 bool print_selection_only,
                                 PrintSettings* print_settings);
 
  private:
   DISALLOW_IMPLICIT_CONSTRUCTORS(PrintSettingsInitializerWin);
 };
 
 }  // namespace printing
 
 #endif  // PRINTING_PRINTING_SETTINGS_INITIALIZER_WIN_H_