Explicitly implement copy ctor/assignment operator for IndexedDBKey

content/common/indexed_db/indexed_db_key.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 CONTENT_COMMON_INDEXED_DB_INDEXED_DB_KEY_H_
 #define CONTENT_COMMON_INDEXED_DB_INDEXED_DB_KEY_H_
 
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_vector.h"
 #include "base/strings/string16.h"
 #include "content/common/content_export.h"
 #include "third_party/WebKit/public/platform/WebIDBTypes.h"
 
 namespace blink {
 class WebIDBKey;
 }
 
 namespace content {
 
 class CONTENT_EXPORT IndexedDBKey {
  public:
   typedef std::vector<IndexedDBKey> KeyArray;
 
   IndexedDBKey();  // Defaults to blink::WebIDBKeyTypeInvalid.
+  IndexedDBKey(const IndexedDBKey& other);
+  IndexedDBKey& operator=(const IndexedDBKey& other);
+
   IndexedDBKey(blink::WebIDBKeyType);  // must be Null or Invalid
   explicit IndexedDBKey(const KeyArray& array);
   explicit IndexedDBKey(const std::string& binary);
   explicit IndexedDBKey(const base::string16& str);
   IndexedDBKey(double number,
                blink::WebIDBKeyType type);  // must be date or number
   ~IndexedDBKey();
 
   bool IsValid() const;
 
@@ skipping 17 matching lines @@
   base::string16 string_;
   double date_;
   double number_;
 
   size_t size_estimate_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_COMMON_INDEXED_DB_INDEXED_DB_KEY_H_