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diff --git a/chromium/webkit/renderer/cpp_variant.h b/chromium/webkit/renderer/cpp_variant.h
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--- a/chromium/webkit/renderer/cpp_variant.h
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@@ -1,116 +0,0 @@
-// 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 contains the declaration for CppVariant, a type used by C++ classes
-  that are to be bound to JavaScript objects.
-
-  CppVariant exists primarily as an interface between C++ callers and the
-  corresponding NPVariant type.  CppVariant also provides a number of
-  convenience constructors and accessors, so that the NPVariantType values
-  don't need to be exposed, and a destructor to free any memory allocated for
-  string values.
-
-  For a usage example, see cpp_binding_example.{h|cc}.
-*/
-
-#ifndef WEBKIT_RENDERER_CPP_VARIANT_H__
-#define WEBKIT_RENDERER_CPP_VARIANT_H__
-
-#include <string>
-#include <vector>
-
-#include "base/basictypes.h"
-#include "third_party/npapi/bindings/npruntime.h"
-#include "webkit/renderer/webkit_renderer_export.h"
-
-namespace webkit_glue {
-
-class WEBKIT_RENDERER_EXPORT CppVariant : public NPVariant {
- public:
-  CppVariant();
-  ~CppVariant();
-  void SetNull();
-  void Set(bool value);
-  void Set(int32_t value);
-  void Set(double value);
-
-  // Note that setting a CppVariant to a string value involves copying the
-  // string data, which must be freed with a call to FreeData() when the
-  // CppVariant is set to a different value or is no longer needed.  Normally
-  // this is handled by the other Set() methods and by the destructor.
-  void Set(const char* value);  // Must be a null-terminated string.
-  void Set(const std::string& value);
-  void Set(const NPString& new_value);
-  void Set(const NPVariant& new_value);
-
-  // Note that setting a CppVariant to an NPObject involves ref-counting
-  // the actual object. FreeData() should only be called if the CppVariant
-  // is no longer needed. The other Set() methods handle this internally.
-  // Also, the object's NPClass is expected to be a static object: neither
-  // the NP runtime nor CPPVariant will ever free it.
-  void Set(NPObject* new_value);
-
-  // These three methods all perform deep copies of any string data.  This
-  // allows local CppVariants to be released by the destructor without
-  // corrupting their sources. In performance-critical code, or when strings
-  // are very long, avoid creating new CppVariants.
-  // In case of NPObject as the data, the copying involves ref-counting
-  // as opposed to deep-copying. The ref-counting ensures that sources don't
-  // get corrupted when the copies get destroyed.
-  void CopyToNPVariant(NPVariant* result) const;
-  CppVariant& operator=(const CppVariant& original);
-  CppVariant(const CppVariant& original);
-
-  // Calls NPN_ReleaseVariantValue, which frees any string data
-  // held by the object and sets its type to null.
-  // In case of NPObject, the NPN_ReleaseVariantValue decrements
-  // the ref-count (releases when ref-count becomes 0)
-  void FreeData();
-
-  // Compares this CppVariant's type and value to another's.  They must be
-  // identical in both type and value to be considered equal.  For string and
-  // object types, a deep comparison is performed; that is, the contents of the
-  // strings, or the classes and refcounts of the objects, must be the same,
-  // but they need not be the same pointers.
-  bool isEqual(const CppVariant& other) const;
-
-  // The value of a CppVariant may be read directly from its NPVariant (but
-  // should only be set using one of the Set() methods above). Although the
-  // type of a CppVariant is likewise public, it can be accessed through these
-  // functions rather than directly if a caller wishes to avoid dependence on
-  // the NPVariantType values.
-  bool isBool() const { return (type == NPVariantType_Bool); }
-  bool isInt32() const { return (type == NPVariantType_Int32); }
-  bool isDouble() const { return (type == NPVariantType_Double); }
-  bool isNumber() const { return (isInt32() || isDouble()); }
-  bool isString() const { return (type == NPVariantType_String); }
-  bool isVoid() const { return (type == NPVariantType_Void); }
-  bool isNull() const { return (type == NPVariantType_Null); }
-  bool isEmpty() const { return (isVoid() || isNull()); }
-  bool isObject() const { return (type == NPVariantType_Object); }
-
-  // Converters.  The CppVariant must be of a type convertible to these values.
-  // For example, ToInt32() works only if isNumber() is true.
-  std::string ToString() const;
-  int32_t ToInt32() const;
-  double ToDouble() const;
-  bool ToBoolean() const;
-  // Returns a vector of CppVariant for the specified variant. This should only
-  // be called on an Object. If the object has no "length" property an empty
-  // vector is returned.
-  std::vector<CppVariant> ToVector() const;
-
-  // Invoke method of the given name on an object with the supplied arguments.
-  // The first argument should be the object on which the method is to be
-  // invoked.  Returns whether the method was successfully invoked.  If the
-  // method was invoked successfully, any return value is stored in the
-  // CppVariant specified by result.
-  bool Invoke(const std::string& method, const CppVariant* args,
-              uint32 arg_count, CppVariant& result) const;
-};
-
-}  // namespace webkit_glue
-
-#endif  // WEBKIT_RENDERER_CPP_VARIANT_H__