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Unified Diff: base/memory/memory_pressure_monitor.cc

Issue 1048983006: Introduce base::MemoryPressureMonitor (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: review comments (CHECK->DCHECK) Created 5 years, 8 months ago
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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
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