Don't use a scoped_refptr for StringVar::FromPPVar

webkit/plugins/ppapi/ppb_uma_private_impl.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 "webkit/plugins/ppapi/ppb_uma_private_impl.h"
 
 #include "base/metrics/histogram.h"
 #include "ppapi/c/pp_var.h"
 #include "ppapi/c/private/ppb_uma_private.h"
 #include "ppapi/shared_impl/var.h"
@@ skipping 15 matching lines @@
     if (_bucket_count <= 1) \
       return; \
   } while (0)
 
 void HistogramCustomTimes(PP_Var name,
                           int64_t sample,
                           int64_t min, int64_t max,
                           uint32_t bucket_count) {
   RETURN_IF_BAD_ARGS(name, sample, min, max, bucket_count);
 
-  scoped_refptr<StringVar> name_string(StringVar::FromPPVar(name));
+  StringVar* name_string = StringVar::FromPPVar(name);
   if (name_string == NULL)
     return;
   base::Histogram* counter =
       base::Histogram::FactoryTimeGet(
           name_string->value(),
           base::TimeDelta::FromMilliseconds(min),
           base::TimeDelta::FromMilliseconds(max),
           bucket_count,
           base::Histogram::kUmaTargetedHistogramFlag);
   counter->AddTime(base::TimeDelta::FromMilliseconds(sample));
 }
 
 void HistogramCustomCounts(PP_Var name,
                            int32_t sample,
                            int32_t min, int32_t max,
                            uint32_t bucket_count) {
   RETURN_IF_BAD_ARGS(name, sample, min, max, bucket_count);
 
-  scoped_refptr<StringVar> name_string(StringVar::FromPPVar(name));
+  StringVar* name_string = StringVar::FromPPVar(name);
   if (name_string == NULL)
     return;
   base::Histogram* counter =
       base::Histogram::FactoryGet(
           name_string->value(),
           min,
           max,
           bucket_count,
           base::Histogram::kUmaTargetedHistogramFlag);
   counter->Add(sample);
 }
 
 void HistogramEnumeration(PP_Var name,
                           int32_t sample,
                           int32_t boundary_value) {
   RETURN_IF_BAD_ARGS(name, sample, 1, boundary_value, boundary_value + 1);
 
-  scoped_refptr<StringVar> name_string(StringVar::FromPPVar(name));
+  StringVar* name_string = StringVar::FromPPVar(name);
   if (name_string == NULL)
     return;
   base::Histogram* counter =
       base::LinearHistogram::FactoryGet(
           name_string->value(),
           1,
           boundary_value,
           boundary_value + 1,
           base::Histogram::kUmaTargetedHistogramFlag);
   counter->Add(sample);
 }
 
 }  // namespace
 
 const PPB_UMA_Private ppb_uma = {
   &HistogramCustomTimes,
   &HistogramCustomCounts,
   &HistogramEnumeration,
 };
 
 // static
 const PPB_UMA_Private* PPB_UMA_Private_Impl::GetInterface() {
   return &ppb_uma;
 }
 
 }  // namespace ppapi
 }  // namespace webkit