Convert FileRefImpl and URLRequestInfo to shared_impl.

ppapi/shared_impl/var.h

 // Copyright (c) 2011 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 PPAPI_SHARED_IMPL_VAR_H_
 #define PPAPI_SHARED_IMPL_VAR_H_
 
 #include <string>
 
 #include "base/compiler_specific.h"
@@ skipping 72 matching lines @@
 // Returning a given string as a PP_Var:
 //   return StringVar::StringToPPVar(module, my_string);
 //
 // Converting a PP_Var to a string:
 //   StringVar* string = StringVar::FromPPVar(var);
 //   if (!string)
 //     return false;  // Not a string or an invalid var.
 //   DoSomethingWithTheString(string->value());
 class StringVar : public Var {
  public:
+  StringVar(PP_Module module, const std::string& str);
   StringVar(PP_Module module, const char* str, uint32 len);
   virtual ~StringVar();
 
   const std::string& value() const { return value_; }
 
   // Var override.
   virtual StringVar* AsStringVar() OVERRIDE;
   virtual PP_Var GetPPVar() OVERRIDE;
   virtual PP_VarType GetType() const OVERRIDE;
 
@@ skipping 13 matching lines @@
 
  private:
   std::string value_;
 
   DISALLOW_COPY_AND_ASSIGN(StringVar);
 };
 
 }  // namespace ppapi
 
 #endif  // PPAPI_SHARED_IMPL_VAR_H_