Memory-monitor for Mac.

content/browser/memory/memory_monitor.h

 // Copyright (c) 2016 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 CONTENT_BROWSER_MEMORY_BROWSER_MEMORY_MONITOR_H_
 #define CONTENT_BROWSER_MEMORY_BROWSER_MEMORY_MONITOR_H_
 
 #include <memory>
 
 #include "base/macros.h"
@@ skipping 33 matching lines @@
 class CONTENT_EXPORT MemoryMonitorDelegate {
  public:
   static MemoryMonitorDelegate* GetInstance();
 
   MemoryMonitorDelegate() {}
   virtual ~MemoryMonitorDelegate();
 
   // Returns system memory information.
   virtual void GetSystemMemoryInfo(base::SystemMemoryInfoKB* mem_info);
 
+  // Gets the system memory-pressure information. Returns true if successful
+  // or false otherwise. The meaning of the returned integer is very much
+  // OS specific.
+  virtual bool GetSystemMemoryPressure(int* mem_pressure);
+
  private:
   friend struct base::DefaultSingletonTraits<MemoryMonitorDelegate>;
 
   DISALLOW_COPY_AND_ASSIGN(MemoryMonitorDelegate);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_MEMORY_BROWSER_MEMORY_MONITOR_H_