Linux Aura: Hide title bar when CustomFrameView maximized on Unity.

ui/views/views_delegate.cc

 // Copyright (c) 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 "ui/views/views_delegate.h"
 
 #include "ui/views/touchui/touch_selection_controller_impl.h"
 
 namespace views {
 
 ViewsDelegate::ViewsDelegate()
     : views_tsc_factory_(new views::ViewsTouchSelectionControllerFactory) {
   ui::TouchSelectionControllerFactory::SetInstance(views_tsc_factory_.get());
 }
 
 ViewsDelegate::~ViewsDelegate() {
   ui::TouchSelectionControllerFactory::SetInstance(NULL);
 }
 
+bool ViewsDelegate::WindowManagerProvidesTitleBar(bool maximized) {
+  return false;
+}
+
 }  // namespace views