Index: chrome/browser/ui/aura/native_window_tracker_aura.cc |
diff --git a/chrome/browser/ui/aura/native_window_tracker_aura.cc b/chrome/browser/ui/aura/native_window_tracker_aura.cc |
new file mode 100644 |
index 0000000000000000000000000000000000000000..bd1106aafdad099f479fcab894245c9945e039aa |
--- /dev/null |
+++ b/chrome/browser/ui/aura/native_window_tracker_aura.cc |
@@ -0,0 +1,34 @@ |
+// Copyright 2014 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 "chrome/browser/ui/aura/native_window_tracker_aura.h" |
+ |
+#include "ui/aura/window.h" |
+ |
+NativeWindowTrackerAura::NativeWindowTrackerAura( |
+ gfx::NativeWindow window) |
+ : window_(window) { |
+ window->AddObserver(this); |
+} |
+ |
+NativeWindowTrackerAura::~NativeWindowTrackerAura() { |
+ if (window_) |
+ window_->RemoveObserver(this); |
+} |
+ |
+bool NativeWindowTrackerAura::WasNativeWindowClosed() const { |
+ return window_ == nullptr; |
+} |
+ |
+void NativeWindowTrackerAura::OnWindowDestroying( |
+ aura::Window* window) { |
+ window_->RemoveObserver(this); |
+ window_ = nullptr; |
+} |
+ |
+// static |
+scoped_ptr<NativeWindowTracker> NativeWindowTracker::Create( |
+ gfx::NativeWindow window) { |
+ return scoped_ptr<NativeWindowTracker>(new NativeWindowTrackerAura(window)); |
+} |