Move OnWindowInitialized() from RootWindowObserver to EnvObserver, the observer of a new global singleton "Env". This will allow us to support multiple RootWindows.

http://crbug.com/112131
TEST=none
Review URL: https://chromiumcodereview.appspot.com/9310071

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@120349 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 49 insertions, 0 deletions

diff --git a/ui/aura/env.cc b/ui/aura/env.cc
new file mode 100644
index 0000000..e8cee8707
--- /dev/null
+++ b/ui/aura/env.cc
@@ -0,0 +1,49 @@
+// Copyright (c) 2012 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 "ui/aura/env.h"
+#include "ui/aura/env_observer.h"
+#include "ui/aura/window.h"
+
+namespace aura {
+
+// static
+Env* Env::instance_ = NULL;
+
+////////////////////////////////////////////////////////////////////////////////
+// Env, public:
+
+Env::Env() {}
+
+Env::~Env() {}
+
+// static
+Env* Env::GetInstance() {
+  if (!instance_)
+    instance_ = new Env;
+  return instance_;
+}
+
+// static
+void Env::DeleteInstance() {
+  delete instance_;
+  instance_ = NULL;
+}
+
+void Env::AddObserver(EnvObserver* observer) {
+  observers_.AddObserver(observer);
+}
+
+void Env::RemoveObserver(EnvObserver* observer) {
+  observers_.RemoveObserver(observer);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Env, private:
+
+void Env::NotifyWindowInitialized(Window* window) {
+  FOR_EACH_OBSERVER(EnvObserver, observers_, OnWindowInitialized(window));
+}
+
+}  // namespace aura