Move IndexedDBKey, IndexedDBKeyRange into content namespace

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_
 #pragma once
 
 #include "base/basictypes.h"
 #include "content/common/content_export.h"
 #include "content/common/indexed_db/indexed_db_key.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebIDBKeyRange.h"
 
+namespace content {
+
 class CONTENT_EXPORT IndexedDBKeyRange {
  public:
   IndexedDBKeyRange();
   explicit IndexedDBKeyRange(const WebKit::WebIDBKeyRange& key_range);
   ~IndexedDBKeyRange();
 
   const IndexedDBKey& lower() const { return lower_; }
   const IndexedDBKey& upper() const { return upper_; }
   bool lowerOpen() const { return lower_open_; }
   bool upperOpen() const { return upper_open_; }
 
   void Set(const IndexedDBKey& lower, const IndexedDBKey& upper,
            bool lower_open, bool upper_open);
 
   operator WebKit::WebIDBKeyRange() const;
 
  private:
   IndexedDBKey lower_;
   IndexedDBKey upper_;
   bool lower_open_;
   bool upper_open_;
 };
 
+}  // namespace content
+
 #endif  // CONTENT_COMMON_INDEXED_DB_INDEXED_DB_KEY_RANGE_H_