Performance monitor stats gathering.

chrome/browser/performance_monitor/database.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/database.h"
 
 #include "base/file_path.h"
 #include "base/file_util.h"
 #include "base/format_macros.h"
 #include "base/json/json_reader.h"
@@ skipping 464 matching lines @@
   leveldb::DB::Open(open_options,
                     WideToUTF8(path_.AppendASCII(kMetricDb).value()), &new_db);
   metric_db_ = scoped_ptr<leveldb::DB>(new_db);
   leveldb::DB::Open(open_options,
                     WideToUTF8(path_.AppendASCII(kEventDb).value()), &new_db);
   event_db_ = scoped_ptr<leveldb::DB>(new_db);
 #endif
 }
 
 void Database::InitMetricDetails() {
-  // TODO(mtytel): Delete this sample metric when a real one is added.
-  metric_details_map_[kSampleMetricName] =
-      MetricDetails(kSampleMetricName, kSampleMetricDescription);
+  metric_details_map_[kMetricCPUUsage]=

[Yoyo Zhou, 2012/07/20 20:47:30]

nit: missing space before =

+      MetricDetails(kMetricCPUUsage, kMetricCPUUsageDescription);
+  metric_details_map_[kMetricPrivateMemoryUsage] =
+      MetricDetails(kMetricPrivateMemoryUsage,
+                    kMetricPrivateMemoryUsageDescription);
+  metric_details_map_[kMetricSharedMemoryUsage] =
+      MetricDetails(kMetricSharedMemoryUsage,
+                    kMetricSharedMemoryUsageDescription);
 }
 
 bool Database::Close() {
   CHECK(!content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
   metric_db_.reset();
   recent_db_.reset();
   state_db_.reset();
   active_interval_db_.reset();
   start_time_key_.clear();
   return true;
@@ skipping 22 matching lines @@
     start_time_key_ = CreateActiveIntervalKey(current_time);
     end_time = start_time_key_;
   } else {
     end_time = CreateActiveIntervalKey(clock_->GetTime());
   }
   last_update_time_ = current_time;
   active_interval_db_->Put(write_options_, start_time_key_, end_time);
 }
 
 }  // namespace performance_monitor