Revert 149766 - Performance monitor stats gathering.

chrome/browser/performance_monitor/metric_details.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/performance_monitor/metric_details.h"
 
 #include "base/logging.h"
 #include "chrome/browser/performance_monitor/constants.h"
 
 namespace performance_monitor {
 namespace {
 
 // Keep this array synced with MetricTypes in the header file.
 // TODO(mtytel): i18n.
 const MetricDetails kMetricDetailsList[] = {
   {
     kMetricCPUUsageName,
     kMetricCPUUsageDescription,
     kMetricCPUUsageUnits,
     kMetricCPUUsageTickSize,
   },
   {
     kMetricPrivateMemoryUsageName,
     kMetricPrivateMemoryUsageDescription,
     kMetricPrivateMemoryUsageUnits,
     kMetricPrivateMemoryUsageTickSize
   },
-  {
-    kMetricSharedMemoryUsageName,
-    kMetricSharedMemoryUsageDescription,
-    kMetricSharedMemoryUsageUnits,
-    kMetricSharedMemoryUsageTickSize
-  },
 };
 COMPILE_ASSERT(ARRAYSIZE_UNSAFE(kMetricDetailsList) == METRIC_NUMBER_OF_METRICS,
                metric_names_incorrect_size);
 
 }  // namespace
 
 const MetricDetails* GetMetricDetails(MetricType metric_type) {
   DCHECK_GT(METRIC_NUMBER_OF_METRICS, metric_type);
   return &kMetricDetailsList[metric_type];
 }
 
 }  // namespace performance_monitor