Switch to standard integer types in chrome/browser/, part 3 of 4.

chrome/browser/performance_monitor/process_metrics_history.h

 // Copyright 2013 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.
 
 #ifndef CHROME_BROWSER_PERFORMANCE_MONITOR_PROCESS_METRICS_HISTORY_H_
 #define CHROME_BROWSER_PERFORMANCE_MONITOR_PROCESS_METRICS_HISTORY_H_
 
+#include "base/macros.h"
 #include "base/memory/linked_ptr.h"
 #include "base/process/process_handle.h"
 #include "content/public/browser/background_tracing_manager.h"
 #include "content/public/browser/child_process_data.h"
 #include "content/public/common/process_type.h"
 
 namespace base {
 class ProcessMetrics;
 }
 
@@ skipping 49 matching lines @@
   double cpu_usage_;
 
   content::BackgroundTracingManager::TriggerHandle trace_trigger_handle_;
 
   DISALLOW_ASSIGN(ProcessMetricsHistory);
 };
 
 }  // namespace performance_monitor
 
 #endif  // CHROME_BROWSER_PERFORMANCE_MONITOR_PROCESS_METRICS_HISTORY_H_