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

components/printing/common/print_messages.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.
 
 // IPC messages for printing.
 // Multiply-included message file, hence no include guard.
 
 #include <stdint.h>
 
 #include <string>
@@ skipping 13 matching lines @@
 #include "ui/gfx/native_widget_types.h"
 
 // Force multiple inclusion of the param traits file to generate all methods.
 #undef COMPONENTS_PRINTING_COMMON_PRINTING_PARAM_TRAITS_MACROS_H_
 
 #ifndef COMPONENTS_PRINTING_COMMON_PRINT_MESSAGES_H_
 #define COMPONENTS_PRINTING_COMMON_PRINT_MESSAGES_H_
 
 struct PrintMsg_Print_Params {
   PrintMsg_Print_Params();
+  PrintMsg_Print_Params(const PrintMsg_Print_Params& other);
   ~PrintMsg_Print_Params();
 
   // Resets the members of the struct to 0.
   void Reset();
 
   gfx::Size page_size;
   gfx::Size content_size;
   gfx::Rect printable_area;
   int margin_top;
   int margin_left;
   double dpi;
   int desired_dpi;
   int document_cookie;
   bool selection_only;
   bool supports_alpha_blend;
   int32_t preview_ui_id;
   int preview_request_id;
   bool is_first_request;
   blink::WebPrintScalingOption print_scaling_option;
   bool print_to_pdf;
   bool display_header_footer;
   base::string16 title;
   base::string16 url;
   bool should_print_backgrounds;
 };
 
 struct PrintMsg_PrintPages_Params {
   PrintMsg_PrintPages_Params();
+  PrintMsg_PrintPages_Params(const PrintMsg_PrintPages_Params& other);
   ~PrintMsg_PrintPages_Params();
 
   // Resets the members of the struct to 0.
   void Reset();
 
   PrintMsg_Print_Params params;
   std::vector<int> pages;
 };
 
 #if defined(ENABLE_PRINT_PREVIEW)
@@ skipping 399 matching lines @@
 
 // Tell the browser to show the print preview, when the document is sufficiently
 // loaded such that the renderer can determine whether it is modifiable or not.
 IPC_MESSAGE_ROUTED1(PrintHostMsg_ShowScriptedPrintPreview,
                     bool /* is_modifiable */)
 
 // Notify the browser to set print presets based on source PDF document.
 IPC_MESSAGE_ROUTED1(PrintHostMsg_SetOptionsFromDocument,
                     PrintHostMsg_SetOptionsFromDocument_Params /* params */)
 #endif  // defined(ENABLE_PRINT_PREVIEW)