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

chrome/browser/browsing_data/browsing_data_file_system_helper.cc

 // 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.
 
 #include "chrome/browser/browsing_data/browsing_data_file_system_helper.h"
 
 #include <set>
 
 #include "base/bind.h"
 #include "base/location.h"
@@ skipping 126 matching lines @@
     const GURL& origin) {
   DCHECK(file_task_runner()->RunsTasksOnCurrentThread());
   filesystem_context_->DeleteDataForOriginOnFileTaskRunner(origin);
 }
 
 }  // namespace
 
 BrowsingDataFileSystemHelper::FileSystemInfo::FileSystemInfo(
     const GURL& origin) : origin(origin) {}
 
+BrowsingDataFileSystemHelper::FileSystemInfo::FileSystemInfo(
+    const FileSystemInfo& other) = default;
+
 BrowsingDataFileSystemHelper::FileSystemInfo::~FileSystemInfo() {}
 
 // static
 BrowsingDataFileSystemHelper* BrowsingDataFileSystemHelper::Create(
     storage::FileSystemContext* filesystem_context) {
   return new BrowsingDataFileSystemHelperImpl(filesystem_context);
 }
 
 CannedBrowsingDataFileSystemHelper::CannedBrowsingDataFileSystemHelper(
     Profile* profile) {
@@ skipping 43 matching lines @@
 }
 
 void CannedBrowsingDataFileSystemHelper::StartFetching(
     const FetchCallback& callback) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   DCHECK(!callback.is_null());
 
   BrowserThread::PostTask(
       BrowserThread::UI, FROM_HERE, base::Bind(callback, file_system_info_));
 }