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

chrome/browser/extensions/api/identity/identity_api.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_IDENTITY_IDENTITY_API_H_
 #define CHROME_BROWSER_EXTENSIONS_API_IDENTITY_IDENTITY_API_H_
 
 #include <map>
 #include <set>
 #include <string>
@@ skipping 42 matching lines @@
 extern const char kPageLoadFailure[];
 extern const char kCanceled[];
 }  // namespace identity_constants
 
 class IdentityTokenCacheValue {
  public:
   IdentityTokenCacheValue();
   explicit IdentityTokenCacheValue(const IssueAdviceInfo& issue_advice);
   IdentityTokenCacheValue(const std::string& token,
                           base::TimeDelta time_to_live);
+  IdentityTokenCacheValue(const IdentityTokenCacheValue& other);
   ~IdentityTokenCacheValue();
 
   // Order of these entries is used to determine whether or not new
   // entries supercede older ones in SetCachedToken.
   enum CacheValueStatus {
     CACHE_STATUS_NOTFOUND,
     CACHE_STATUS_ADVICE,
     CACHE_STATUS_TOKEN
   };
 
@@ skipping 281 matching lines @@
   // Helper to initialize final URL prefix.
   void InitFinalRedirectURLPrefix(const std::string& extension_id);
 
   scoped_ptr<WebAuthFlow> auth_flow_;
   GURL final_url_prefix_;
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_IDENTITY_IDENTITY_API_H_