Immersive mode reveals the tabstrip/omnibox on top of web content

ash/accelerators/accelerator_controller.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 "ash/accelerators/accelerator_controller.h"
 
 #include <algorithm>
 #include <cmath>
 #include <string>
 
@@ skipping 261 matching lines @@
 bool HandlePrintLayerHierarchy() {
   Shell::RootWindowList root_windows = Shell::GetAllRootWindows();
   for (size_t i = 0; i < root_windows.size(); ++i) {
     ui::PrintLayerHierarchy(root_windows[i]->layer(),
                             root_windows[i]->GetLastMouseLocationInRoot());
   }
   return true;
 }
 
 bool HandlePrintViewHierarchy() {
-  aura::Window* default_container =
-      Shell::GetPrimaryRootWindowController()->GetContainer(
-          internal::kShellWindowId_DefaultContainer);
-  if (default_container->children().empty())
+  aura::Window* active_window = ash::wm::GetActiveWindow();
+  if (!active_window)
     return true;
-  aura::Window* browser_frame = default_container->children()[0];
   views::Widget* browser_widget =
-      views::Widget::GetWidgetForNativeWindow(browser_frame);
-  views::PrintViewHierarchy(browser_widget->GetRootView());
+      views::Widget::GetWidgetForNativeWindow(active_window);
+  if (browser_widget)
+    views::PrintViewHierarchy(browser_widget->GetRootView());
   return true;
 }
 
 void PrintWindowHierarchy(aura::Window* window, int indent) {
   std::string indent_str(indent, ' ');
   DLOG(INFO) << indent_str << window->name() << " type " << window->type()
       << (wm::IsActiveWindow(window) ? "active" : "");
   for (size_t i = 0; i < window->children().size(); ++i)
     PrintWindowHierarchy(window->children()[i], indent + 3);
 }
@@ skipping 576 matching lines @@
     keyboard_brightness_control_delegate) {
   keyboard_brightness_control_delegate_ =
       keyboard_brightness_control_delegate.Pass();
 }
 
 bool AcceleratorController::CanHandleAccelerators() const {
   return true;
 }
 
 }  // namespace ash