1 files changed, 68 insertions, 0 deletions
diff --git a/chromium/ash/system/tray/tray_empty.cc b/chromium/ash/system/tray/tray_empty.cc
new file mode 100644
index 00000000000..f15f7b31e73
--- /dev/null
+++ b/chromium/ash/system/tray/tray_empty.cc
@@ -0,0 +1,68 @@
+// 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 "ash/system/tray/tray_empty.h"
+
+#include "ui/views/layout/box_layout.h"
+#include "ui/views/background.h"
+#include "ui/views/border.h"
+#include "ui/views/view.h"
+
+namespace {
+
+class EmptyBackground : public views::Background {
+ public:
+  EmptyBackground() {}
+  virtual ~EmptyBackground() {}
+
+ private:
+  virtual void Paint(gfx::Canvas* canvas, views::View* view) const OVERRIDE {
+  }
+
+  DISALLOW_COPY_AND_ASSIGN(EmptyBackground);
+};
+
+}
+
+namespace ash {
+namespace internal {
+
+TrayEmpty::TrayEmpty(SystemTray* system_tray)
+    : SystemTrayItem(system_tray) {
+}
+
+TrayEmpty::~TrayEmpty() {}
+
+views::View* TrayEmpty::CreateTrayView(user::LoginStatus status) {
+  return NULL;
+}
+
+views::View* TrayEmpty::CreateDefaultView(user::LoginStatus status) {
+  if (status == user::LOGGED_IN_NONE)
+    return NULL;
+
+  views::View* view = new views::View;
+  view->set_background(new EmptyBackground());
+  view->set_border(views::Border::CreateEmptyBorder(10, 0, 0, 0));
+  view->SetLayoutManager(new views::BoxLayout(views::BoxLayout::kVertical,
+        0, 0, 0));
+  view->SetPaintToLayer(true);
+  view->SetFillsBoundsOpaquely(false);
+  return view;
+}
+
+views::View* TrayEmpty::CreateDetailedView(user::LoginStatus status) {
+  return NULL;
+}
+
+void TrayEmpty::DestroyTrayView() {}
+
+void TrayEmpty::DestroyDefaultView() {}
+
+void TrayEmpty::DestroyDetailedView() {}
+
+void TrayEmpty::UpdateAfterLoginStatusChange(user::LoginStatus status) {}
+
+}  // namespace internal
+}  // namespace ash