Don't use a scoped_refptr for StringVar::FromPPVar

ppapi/shared_impl/var.cc

 // 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.
 
 #include "ppapi/shared_impl/var.h"
 
 #include <limits>
 
 #include "base/logging.h"
 #include "base/string_number_conversions.h"
@@ skipping 19 matching lines @@
       return "[Undefined]";
     case PP_VARTYPE_NULL:
       return "[Null]";
     case PP_VARTYPE_BOOL:
       return var.value.as_bool ? "[True]" : "[False]";
     case PP_VARTYPE_INT32:
       return base::IntToString(var.value.as_int);
     case PP_VARTYPE_DOUBLE:
       return base::DoubleToString(var.value.as_double);
     case PP_VARTYPE_STRING: {
-      scoped_refptr<StringVar> string(StringVar::FromPPVar(var));
+      StringVar* string(StringVar::FromPPVar(var));
       if (!string)
         return "[Invalid string]";
 
       // Since this is for logging, escape NULLs, truncate length.
       std::string result;
       const size_t kTruncateAboveLength = 128;
       if (string->value().size() > kTruncateAboveLength)
         result = string->value().substr(0, kTruncateAboveLength) + "...";
       else
         result = string->value();
@@ skipping 81 matching lines @@
 // static
 PP_Var StringVar::StringToPPVar(PP_Module module,
                                 const char* data, uint32 len) {
   scoped_refptr<StringVar> str(new StringVar(module, data, len));
   if (!str || !IsStringUTF8(str->value()))
     return PP_MakeNull();
   return str->GetPPVar();
 }
 
 // static
-scoped_refptr<StringVar> StringVar::FromPPVar(PP_Var var) {
+StringVar* StringVar::FromPPVar(PP_Var var) {
   if (var.type != PP_VARTYPE_STRING)
-    return scoped_refptr<StringVar>();
+    return NULL;
   scoped_refptr<Var> var_object(
       TrackerBase::Get()->GetVarTracker()->GetVar(var));
   if (!var_object)
-    return scoped_refptr<StringVar>();
-  return scoped_refptr<StringVar>(var_object->AsStringVar());
+    return NULL;
+  return var_object->AsStringVar();
 }
 
 }  // namespace ppapi