Moved extension and value builder code to extensions component.

extensions/common/value_builder.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.
 
 // This file provides a builders for DictionaryValue and ListValue.  These
 // aren't specific to extensions and could move up to base/ if there's interest
 // from other sub-projects.
 //
 // The general pattern is to write:
 //
@@ skipping 12 matching lines @@
 // just-constructed Builder into another Builder's method directly. Use the
 // Pass() method.
 //
 // The Build() method invalidates its builder, and returns ownership of the
 // built value.
 //
 // These objects are intended to be used as temporaries rather than stored
 // anywhere, so the use of non-const reference parameters is likely to cause
 // less confusion than usual.
 
-#ifndef CHROME_COMMON_EXTENSIONS_VALUE_BUILDER_H_
-#define CHROME_COMMON_EXTENSIONS_VALUE_BUILDER_H_
+#ifndef EXTENSIONS_COMMON_VALUE_BUILDER_H_
+#define EXTENSIONS_COMMON_VALUE_BUILDER_H_
 
 #include <string>
 
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/string16.h"
 #include "base/values.h"
 
 namespace extensions {
 
 class ListBuilder;
@@ skipping 49 matching lines @@
   // Named differently because overload resolution is too eager to
   // convert implicitly to bool.
   ListBuilder& AppendBoolean(bool in_value);
 
  private:
   scoped_ptr<base::ListValue> list_;
 };
 
 } // namespace extensions
 
-#endif  // CHROME_COMMON_EXTENSIONS_VALUE_BUILDER_H_
+#endif  // EXTENSIONS_COMMON_VALUE_BUILDER_H_