Index: base/memory/memory_pressure_monitor.cc |
diff --git a/base/memory/memory_pressure_monitor.cc b/base/memory/memory_pressure_monitor.cc |
new file mode 100644 |
index 0000000000000000000000000000000000000000..00633f1dd61981af41c7738d9c182d97367b9aef |
--- /dev/null |
+++ b/base/memory/memory_pressure_monitor.cc |
@@ -0,0 +1,31 @@ |
+// 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. |
+ |
+#include "base/memory/memory_pressure_monitor.h" |
+ |
+#include "base/logging.h" |
+ |
+namespace base { |
+namespace { |
+ |
+MemoryPressureMonitor* g_monitor = nullptr; |
+ |
+} // namespace |
+ |
+MemoryPressureMonitor::MemoryPressureMonitor() { |
+ DCHECK(!g_monitor); |
+ g_monitor = this; |
+} |
+ |
+MemoryPressureMonitor::~MemoryPressureMonitor() { |
+ DCHECK(g_monitor); |
+ g_monitor = nullptr; |
+} |
+ |
+// static |
+MemoryPressureMonitor* MemoryPressureMonitor::Get() { |
+ return g_monitor; |
+} |
+ |
+} // namespace base |