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

components/safe_browsing_db/v4_protocol_manager_util.cc

 // Copyright 2016 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/safe_browsing_db/v4_protocol_manager_util.h"
 
 #include "base/base64.h"
 #include "base/metrics/sparse_histogram.h"
 #include "base/rand_util.h"
 #include "base/strings/stringprintf.h"
@@ skipping 21 matching lines @@
   std::size_t first = std::hash<unsigned int>()(platform_type);
   std::size_t second = std::hash<unsigned int>()(threat_entry_type);
   std::size_t third = std::hash<unsigned int>()(threat_type);
 
   std::size_t interim = base::HashInts(first, second);
   return base::HashInts(interim, third);
 }
 
 V4ProtocolConfig::V4ProtocolConfig() : disable_auto_update(false) {}
 
+V4ProtocolConfig::V4ProtocolConfig(const V4ProtocolConfig& other) = default;
+
 V4ProtocolConfig::~V4ProtocolConfig() {}
 
 // static
 // Backoff interval is MIN(((2^(n-1))*15 minutes) * (RAND + 1), 24 hours) where
 // n is the number of consecutive errors.
 base::TimeDelta V4ProtocolManagerUtil::GetNextBackOffInterval(
     size_t* error_count,
     size_t* multiplier) {
   DCHECK(multiplier && error_count);
   (*error_count)++;
@@ skipping 47 matching lines @@
                          prefix.c_str(), method.c_str(), request_base64.c_str(),
                          client_id.c_str(), version.c_str());
   if (!key_param.empty()) {
     base::StringAppendF(&url, "&key=%s",
                         net::EscapeQueryParamValue(key_param, true).c_str());
   }
   return url;
 }
 
 }  // namespace safe_browsing