Switch to standard integer types in components/, part 2 of 4.

components/memory_pressure/memory_pressure_stats_collector.h

 // Copyright 2015 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 COMPONENTS_MEMORY_PRESSURE_MEMORY_PRESSURE_STATS_COLLECTOR_H_
 #define COMPONENTS_MEMORY_PRESSURE_MEMORY_PRESSURE_STATS_COLLECTOR_H_
 
+#include "base/macros.h"
 #include "base/time/time.h"
 #include "components/memory_pressure/memory_pressure_listener.h"
 
 namespace base {
 class TickClock;
 }
 
 namespace memory_pressure {
 
 // Enumeration of UMA memory pressure levels. The pressure level enum defined in
@@ skipping 66 matching lines @@
   // the time when this pressure level started.
   MemoryPressureLevel last_pressure_level_;
   base::TimeTicks last_update_time_;
 
   DISALLOW_COPY_AND_ASSIGN(MemoryPressureStatsCollector);
 };
 
 }  // namespace memory_pressure
 
 #endif  // COMPONENTS_MEMORY_PRESSURE_MEMORY_PRESSURE_STATS_COLLECTOR_H_