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

components/cloud_devices/common/printer_description.cc

 // Copyright 2014 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.
 
 #include "components/cloud_devices/common/printer_description.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 
@@ skipping 453 matching lines @@
              const std::string& vendor_id,
              int32_t width_um,
              int32_t height_um)
     : type(CUSTOM_MEDIA),
       width_um(width_um),
       height_um(height_um),
       is_continuous_feed(width_um <= 0 || height_um <= 0),
       custom_display_name(custom_display_name),
       vendor_id(vendor_id) {}
 
+Media::Media(const Media& other) = default;
+
 bool Media::MatchBySize() {
   const MediaDefinition* media = FindMediaBySize(width_um, height_um);
   if (!media)
     return false;
   type = media->id;
   return true;
 }
 
 bool Media::IsValid() const {
   if (is_continuous_feed) {
@@ skipping 346 matching lines @@
 template class TicketItem<Margins, MarginsTraits>;
 template class TicketItem<Dpi, DpiTraits>;
 template class TicketItem<FitToPageType, FitToPageTraits>;
 template class TicketItem<Media, MediaTraits>;
 template class TicketItem<int32_t, CopiesTraits>;
 template class TicketItem<PageRange, PageRangeTraits>;
 template class TicketItem<bool, CollateTraits>;
 template class TicketItem<bool, ReverseTraits>;
 
 }  // namespace cloud_devices