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

chrome/browser/extensions/api/dial/dial_device_data.h

 // 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.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_API_DIAL_DIAL_DEVICE_DATA_H_
 #define CHROME_BROWSER_EXTENSIONS_API_DIAL_DIAL_DEVICE_DATA_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 11 matching lines @@
 
 // Dial device information that is used within the DialService and Registry on
 // the IO thread. It is updated as new information arrives and a list of
 // DialDeviceData is copied and sent to event listeners on the UI thread.
 class DialDeviceData {
  public:
   DialDeviceData();
   DialDeviceData(const std::string& device_id,
                  const GURL& device_description_url,
                  const base::Time& response_time);
+  DialDeviceData(const DialDeviceData& other);
   ~DialDeviceData();
 
   bool operator==(const DialDeviceData& other_data) const {
     return device_id_ == other_data.device_id_;
   }
 
   const std::string& device_id() const { return device_id_; }
   void set_device_id(const std::string& id) {
     device_id_ = id;
   }
@@ skipping 47 matching lines @@
   // Optional (-1 means unset).
   int max_age_;
 
   // Optional (-1 means unset).
   int config_id_;
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_DIAL_DIAL_DEVICE_DATA_H_