Explicitly implement copy ctor/assignment operator for IndexedDBKey

content/common/indexed_db/indexed_db_key.cc

 // 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.
 
 #include "content/common/indexed_db/indexed_db_key.h"
 
 #include <string>
 #include "base/logging.h"
 
 namespace content {
@@ skipping 32 matching lines @@
 }
 
 }  // namespace
 
 IndexedDBKey::IndexedDBKey()
     : type_(WebIDBKeyTypeNull),
       date_(0),
       number_(0),
       size_estimate_(kOverheadSize) {}
 
+IndexedDBKey::IndexedDBKey(const IndexedDBKey& other)
+    : type_(other.type_),
+      array_(other.array_),
+      binary_(other.binary_),
+      string_(other.string_),
+      date_(other.date_),
+      number_(other.number_),
+      size_estimate_(other.size_estimate_) {
+  DCHECK((!IsValid() && !other.IsValid()) || Compare(other) == 0);
+}
+
+IndexedDBKey& IndexedDBKey::operator=(const IndexedDBKey& other) {
+  type_ = other.type_;
+  array_ = other.array_;
+  binary_ = other.binary_;
+  string_ = other.string_;
+  date_ = other.date_;
+  number_ = other.number_;
+  size_estimate_ = other.size_estimate_;
+  DCHECK((!IsValid() && !other.IsValid()) || Compare(other) == 0);
+  return *this;
+}
+
 IndexedDBKey::IndexedDBKey(WebIDBKeyType type)
     : type_(type), date_(0), number_(0), size_estimate_(kOverheadSize) {
   DCHECK(type == WebIDBKeyTypeNull || type == WebIDBKeyTypeInvalid);
 }
 
 IndexedDBKey::IndexedDBKey(double number, WebIDBKeyType type)
     : type_(type),
       date_(number),
       number_(number),
       size_estimate_(kOverheadSize + sizeof(number)) {
@@ skipping 73 matching lines @@
     for (size_t i = 0; i < array_.size(); i++) {
       if (!array_[i].IsValid())
         return false;
     }
   }
 
   return true;
 }
 
 }  // namespace content