ash: Add a bluetooth entry in the uber tray.

ash/system/tray/tray_item_more.cc

Index: ash/system/tray/tray_item_more.cc
diff --git a/ash/system/tray/tray_item_more.cc b/ash/system/tray/tray_item_more.cc
new file mode 100644
index 0000000000000000000000000000000000000000..5f17b66f92c2d23ca1618f1899175e709e6db2eb
--- /dev/null
+++ b/ash/system/tray/tray_item_more.cc
@@ -0,0 +1,41 @@
+// 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_item_more.h"
+
+#include "ash/system/tray/tray_constants.h"
+#include "grit/ui_resources.h"
+#include "ui/base/resource/resource_bundle.h"
+#include "ui/gfx/image/image.h"
+#include "ui/views/controls/image_view.h"
+
+namespace ash {
+namespace internal {
+
+TrayItemMore::TrayItemMore()
+    : more_(NULL) {
+}
+
+TrayItemMore::~TrayItemMore() {
+}
+
+void TrayItemMore::AddMore() {
+  more_ = new views::ImageView;
+  more_->SetImage(ui::ResourceBundle::GetSharedInstance().GetImageNamed(
+        IDR_AURA_UBER_TRAY_MORE).ToSkBitmap());
+  AddChildView(more_);
+}
+
+void TrayItemMore::Layout() {
+  // Let the box-layout do the layout first. Then move the '>' arrow to right
+  // align.
+  views::View::Layout();
+
+  gfx::Rect bounds = more_->bounds();
+  bounds.set_x(width() - more_->width() - kTrayPopupPaddingBetweenItems);
+  more_->SetBoundsRect(bounds);
+}
+
+}  // namespace internal
+}  // namespace ash