Call ShowRootWindow on NativeWindow's RootWindow to display the window.

content/shell/shell_aura.cc

 // 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 "content/shell/shell.h"
 
 #include "base/command_line.h"
 #include "base/utf_string_conversions.h"
 #include "content/public/browser/web_contents.h"
 #include "ui/aura/env.h"
@@ skipping 265 matching lines @@
 
 aura::client::StackingClient* Shell::stacking_client_ = NULL;
 views::ViewsDelegate* Shell::views_delegate_ = NULL;
 
 // static
 void Shell::PlatformInitialize() {
 #if defined(OS_CHROMEOS)
   chromeos::DBusThreadManager::Initialize();
 #endif
 #if defined(OS_CHROMEOS)
-  stacking_client_ = new content::ShellStackingClientAsh();
   gfx::Screen::SetScreenInstance(
       gfx::SCREEN_TYPE_NATIVE, new aura::TestScreen);
+  scoped_ptr<aura::RootWindow> root_window =
+      CreateRootWindow(kTestWindowWidth, kTestWindowHeight);
+  stacking_client_ =
+      new content::ShellStackingClientAsh(root_window.Pass());
 #else
   stacking_client_ = new views::DesktopStackingClient();
   gfx::Screen::SetScreenInstance(
       gfx::SCREEN_TYPE_NATIVE, views::CreateDesktopScreen());
 #endif
   aura::client::SetStackingClient(stacking_client_);
   views_delegate_ = new ShellViewsDelegateAura();
 }
 
+// static
+scoped_ptr<aura::RootWindow> Shell::CreateRootWindow(int width, int height) {
+  scoped_ptr<aura::RootWindow> root_window(new aura::RootWindow(
+      aura::RootWindow::CreateParams(gfx::Rect(0, 0, width, height))));
+  root_window->Init();
+  return root_window.Pass();
+}
+
 void Shell::PlatformExit() {
   if (stacking_client_)
     delete stacking_client_;
   if (views_delegate_)
     delete views_delegate_;
 #if defined(OS_CHROMEOS)
   chromeos::DBusThreadManager::Shutdown();
 #endif
   aura::Env::DeleteInstance();
 }
@@ skipping 20 matching lines @@
   ShellWindowDelegateView* delegate_view =
     static_cast<ShellWindowDelegateView*>(window_widget_->widget_delegate());
   delegate_view->SetAddressBarURL(url);
 }
 
 void Shell::PlatformSetIsLoading(bool loading) {
 }
 
 void Shell::PlatformCreateWindow(int width, int height) {
   window_widget_ =
-      views::Widget::CreateWindowWithBounds(new ShellWindowDelegateView(this),
-               gfx::Rect(0, 0, width, height));
+      views::Widget::CreateWindowWithContextAndBounds(
+          new ShellWindowDelegateView(this),
+          Shell::stacking_client_->GetDefaultParent(
+              NULL, NULL, gfx::Rect()),
+          gfx::Rect(0, 0, width, height));
   window_ = window_widget_->GetNativeWindow();
+  // RootWindow created via CreateRootWindow doesn't get a
+  // ShowRootWindow call, hence its XWindow doesn't get mapped.
+  // Explicitly call the ShowRootWindow on RootWindow for now.
+  window_->GetRootWindow()->ShowRootWindow();
   window_widget_->Show();
 }
 
 void Shell::PlatformSetContents() {
   ShellWindowDelegateView* delegate_view =
     static_cast<ShellWindowDelegateView*>(window_widget_->widget_delegate());
   delegate_view->SetWebContents(web_contents_.get());
 }
 
 void Shell::PlatformResizeSubViews() {
 }
 
 void Shell::Close() {
   window_widget_->Close();
 }
 
 void Shell::PlatformSetTitle(const string16& title) {
   ShellWindowDelegateView* delegate_view =
     static_cast<ShellWindowDelegateView*>(window_widget_->widget_delegate());
   delegate_view->SetWindowTitle(title);
   window_widget_->UpdateWindowTitle();
 }
 
 }  // namespace content