Add printing.dll to the component build.

printing/print_settings.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 PRINTING_PRINT_SETTINGS_H_
 #define PRINTING_PRINT_SETTINGS_H_
 
 #include <string>
 
 #include "base/memory/scoped_ptr.h"
 #include "base/string16.h"
 #include "printing/page_range.h"
 #include "printing/page_setup.h"
 #include "ui/gfx/rect.h"
 
 namespace printing {
 
 // OS-independent print settings.
-class PrintSettings {
+class PRINTING_EXPORT PrintSettings {
  public:
   PrintSettings();
   ~PrintSettings();
 
   // Reinitialize the settings to the default values.
   void Clear();
 
   // Set printer printable area in in device units.
   void SetPrinterPrintableArea(gfx::Size const& physical_size_device_units,
                                gfx::Rect const& printable_area_device_units,
@@ skipping 94 matching lines @@
   // Is the orientation landscape or portrait.
   bool landscape_;
 
   // True if this printer supports AlphaBlend.
   bool supports_alpha_blend_;
 };
 
 }  // namespace printing
 
 #endif  // PRINTING_PRINT_SETTINGS_H_