printing: Add out-of-line copy ctors for complex classes.

printing/print_settings.h

 // Copyright (c) 2012 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/strings/string16.h"
@@ skipping 30 matching lines @@
     gfx::Size size_microns;
     // Platform specific id to map it back to the particular media.
     std::string vendor_id;
 
     bool IsDefault() const {
       return size_microns.IsEmpty() && vendor_id.empty();
     }
   };
 
   PrintSettings();
+  PrintSettings(const PrintSettings& other);
   ~PrintSettings();
 
   // Reinitialize the settings to the default values.
   void Clear();
 
   void SetCustomMargins(const PageMargins& requested_margins_in_points);
   const PageMargins& requested_custom_margins_in_points() const {
     return requested_custom_margins_in_points_;
   }
   void set_margin_type(MarginType margin_type) { margin_type_ = margin_type; }
@@ skipping 142 matching lines @@
   // True if this printer supports AlphaBlend.
   bool supports_alpha_blend_;
 
   // If margin type is custom, this is what was requested.
   PageMargins requested_custom_margins_in_points_;
 };
 
 }  // namespace printing
 
 #endif  // PRINTING_PRINT_SETTINGS_H_