Move base to DEPS

base/memory/memory_pressure_listener.cc

Index: base/memory/memory_pressure_listener.cc
diff --git a/base/memory/memory_pressure_listener.cc b/base/memory/memory_pressure_listener.cc
deleted file mode 100644
index 2a1be74ebb99bfb6eaa00af8005ec44d19c57d6f..0000000000000000000000000000000000000000
--- a/base/memory/memory_pressure_listener.cc
+++ /dev/null
@@ -1,61 +0,0 @@
-// 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.
-
-#include "base/memory/memory_pressure_listener.h"
-
-#include "base/lazy_instance.h"
-#include "base/observer_list_threadsafe.h"
-#include "base/trace_event/trace_event.h"
-
-namespace base {
-
-namespace {
-
-// ObserverListThreadSafe is RefCountedThreadSafe, this traits is needed
-// to ensure the LazyInstance will hold a reference to it.
-struct LeakyLazyObserverListTraits :
-    base::internal::LeakyLazyInstanceTraits<
-        ObserverListThreadSafe<MemoryPressureListener> > {
-  static ObserverListThreadSafe<MemoryPressureListener>*
-      New(void* instance) {
-    ObserverListThreadSafe<MemoryPressureListener>* ret =
-        base::internal::LeakyLazyInstanceTraits<
-            ObserverListThreadSafe<MemoryPressureListener>>::New(instance);
-    // Leaky.
-    ret->AddRef();
-    return ret;
-  }
-};
-
-LazyInstance<
-    ObserverListThreadSafe<MemoryPressureListener>,
-    LeakyLazyObserverListTraits> g_observers = LAZY_INSTANCE_INITIALIZER;
-
-}  // namespace
-
-MemoryPressureListener::MemoryPressureListener(
-    const MemoryPressureListener::MemoryPressureCallback& callback)
-    : callback_(callback) {
-  g_observers.Get().AddObserver(this);
-}
-
-MemoryPressureListener::~MemoryPressureListener() {
-  g_observers.Get().RemoveObserver(this);
-}
-
-void MemoryPressureListener::Notify(MemoryPressureLevel memory_pressure_level) {
-  callback_.Run(memory_pressure_level);
-}
-
-// static
-void MemoryPressureListener::NotifyMemoryPressure(
-    MemoryPressureLevel memory_pressure_level) {
-  DCHECK_NE(memory_pressure_level, MEMORY_PRESSURE_LEVEL_NONE);
-  TRACE_EVENT1("memory", "MemoryPressureListener::NotifyMemoryPressure",
-      "level", memory_pressure_level);
-  g_observers.Get().Notify(FROM_HERE, &MemoryPressureListener::Notify,
-                           memory_pressure_level);
-}
-
-}  // namespace base