IndexedDB: Use C++11 in-class member initializers

content/common/indexed_db/indexed_db_key_range.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_RANGE_H_
 #define CONTENT_COMMON_INDEXED_DB_INDEXED_DB_KEY_RANGE_H_
 
 #include "base/basictypes.h"
 #include "content/common/content_export.h"
 #include "content/common/indexed_db/indexed_db_key.h"
@@ skipping 13 matching lines @@
   IndexedDBKeyRange& operator=(const IndexedDBKeyRange& other);
 
   const IndexedDBKey& lower() const { return lower_; }
   const IndexedDBKey& upper() const { return upper_; }
   bool lower_open() const { return lower_open_; }
   bool upper_open() const { return upper_open_; }
 
   bool IsOnlyKey() const;
 
  private:
-  IndexedDBKey lower_;
-  IndexedDBKey upper_;
-  bool lower_open_;
-  bool upper_open_;
+  IndexedDBKey lower_ = IndexedDBKey(blink::WebIDBKeyTypeNull);
+  IndexedDBKey upper_ = IndexedDBKey(blink::WebIDBKeyTypeNull);
+  bool lower_open_ = false;
+  bool upper_open_ = false;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_COMMON_INDEXED_DB_INDEXED_DB_KEY_RANGE_H_