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

components/search_engines/util.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/search_engines/util.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <map>
@@ skipping 164 matching lines @@
     prepopulated_url->SetShortName(original_turl->short_name());
   }
   prepopulated_url->id = original_turl->id();
   prepopulated_url->sync_guid = original_turl->sync_guid();
   prepopulated_url->date_created = original_turl->date_created();
   prepopulated_url->last_modified = original_turl->last_modified();
 }
 
 ActionsFromPrepopulateData::ActionsFromPrepopulateData() {}
 
+ActionsFromPrepopulateData::ActionsFromPrepopulateData(
+    const ActionsFromPrepopulateData& other) = default;
+
 ActionsFromPrepopulateData::~ActionsFromPrepopulateData() {}
 
 // This is invoked when the version of the prepopulate data changes.
 // If |removed_keyword_guids| is not NULL, the Sync GUID of each item removed
 // from the DB will be added to it.  Note that this function will take
 // ownership of |prepopulated_urls| and will clear the vector.
 void MergeEnginesFromPrepopulateData(
     KeywordWebDataService* service,
     ScopedVector<TemplateURLData>* prepopulated_urls,
     size_t default_search_index,
@@ skipping 188 matching lines @@
   std::vector<std::string> deduped_encodings;
   std::set<std::string> encoding_set;
   for (std::vector<std::string>::const_iterator i(encodings->begin());
        i != encodings->end(); ++i) {
     if (encoding_set.insert(*i).second)
       deduped_encodings.push_back(*i);
   }
   encodings->swap(deduped_encodings);
   return encodings->size() != deduped_encodings.size();
 }