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

chrome/browser/extensions/bundle_installer.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_BUNDLE_INSTALLER_H_
 #define CHROME_BROWSER_EXTENSIONS_BUNDLE_INSTALLER_H_
 
 #include <stddef.h>
 
 #include <string>
@@ skipping 43 matching lines @@
   struct Item {
     // Items are in the PENDING state until they've been installed, or the
     // install has failed or been canceled.
     enum State {
       STATE_PENDING,
       STATE_INSTALLED,
       STATE_FAILED
     };
 
     Item();
+    Item(const Item& other);
     ~Item();
 
     // Gets the localized name, formatted for display in the bubble.
     base::string16 GetNameForDisplay() const;
 
     std::string id;
     std::string manifest;
     std::string localized_name;
     GURL icon_url;
     SkBitmap icon;
@@ skipping 134 matching lines @@
   base::Closure install_callback_;
 
   base::WeakPtrFactory<BundleInstaller> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(BundleInstaller);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_BUNDLE_INSTALLER_H_