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

components/storage_monitor/storage_info.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/storage_monitor/storage_info.h"
 
 #include <stddef.h>
 
 #include "base/logging.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 37 matching lines @@
   return product_name;
 }
 
 }  // namespace
 
 namespace storage_monitor {
 
 StorageInfo::StorageInfo() : total_size_in_bytes_(0) {
 }
 
+StorageInfo::StorageInfo(const StorageInfo& other) = default;
+
 StorageInfo::StorageInfo(const std::string& device_id_in,
                          const base::FilePath::StringType& device_location,
                          const base::string16& label,
                          const base::string16& vendor,
                          const base::string16& model,
                          uint64_t size_in_bytes)
     : device_id_(device_id_in),
       location_(device_location),
       storage_label_(label),
       vendor_name_(vendor),
@@ skipping 138 matching lines @@
     name = GetFullProductName(vendor_name_, model_name_);
   if (name.empty())
     name = base::ASCIIToUTF16("Unlabeled device");
 
   if (with_size)
     name = GetDisplayNameForDevice(total_size_in_bytes_, name);
   return name;
 }
 
 }  // namespace storage_monitor