[Extensions API] Remove inline enums

chrome/browser/extensions/api/metrics_private/metrics_private_api.cc

 // 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.
 
 #include "chrome/browser/extensions/api/metrics_private/metrics_private_api.h"
 
 #include <algorithm>
 
 #include "base/metrics/field_trial.h"
 #include "base/metrics/histogram.h"
@@ skipping 98 matching lines @@
   if (counter)
     counter->Add(sample);
   return true;
 }
 
 bool MetricsPrivateRecordValueFunction::RunSync() {
   scoped_ptr<RecordValue::Params> params(RecordValue::Params::Create(*args_));
   EXTENSION_FUNCTION_VALIDATE(params.get());
 
   // Get the histogram parameters from the metric type object.
-  std::string type = api::metrics_private::MetricType::ToString(
-      params->metric.type);
+  std::string type = api::metrics_private::ToString(params->metric.type);
 
   base::HistogramType histogram_type(type == "histogram-linear" ?
       base::LINEAR_HISTOGRAM : base::HISTOGRAM);
   return RecordValue(params->metric.metric_name, histogram_type,
                      params->metric.min, params->metric.max,
                      params->metric.buckets, params->value);
 }
 
 bool MetricsPrivateRecordSparseValueFunction::RunSync() {
   scoped_ptr<RecordSparseValue::Params> params(
@@ skipping 56 matching lines @@
 bool MetricsPrivateRecordLongTimeFunction::RunSync() {
   scoped_ptr<RecordLongTime::Params> params(
       RecordLongTime::Params::Create(*args_));
   EXTENSION_FUNCTION_VALIDATE(params.get());
   static const int kOneHourMs = 60 * 60 * 1000;
   return RecordValue(params->metric_name, base::HISTOGRAM,
                      1, kOneHourMs, 50, params->value);
 }
 
 } // namespace extensions