aura: Remove layerless windows.

ui/keyboard/keyboard_controller.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/keyboard/keyboard_controller.h"
 
 #include <set>
 
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 263 matching lines @@
 }
 
 aura::Window* KeyboardController::GetContainerWindow() {
   if (!container_.get()) {
     container_.reset(new aura::Window(
         new KeyboardWindowDelegate(proxy_.get())));
     container_->SetEventTargeter(scoped_ptr<ui::EventTargeter>(
         new KeyboardContainerTargeter(container_.get(), proxy_.get())));
     container_->SetName("KeyboardContainer");
     container_->set_owned_by_parent(false);
-    container_->Init(aura::WINDOW_LAYER_NOT_DRAWN);
+    container_->Init(ui::LAYER_NOT_DRAWN);
     container_->AddObserver(this);
     container_->SetLayoutManager(new KeyboardLayoutManager(this));
   }
   return container_.get();
 }
 
 void KeyboardController::NotifyKeyboardBoundsChanging(
     const gfx::Rect& new_bounds) {
   current_keyboard_bounds_ = new_bounds;
   if (proxy_->HasKeyboardWindow() && proxy_->GetKeyboardWindow()->IsVisible()) {
@@ skipping 277 matching lines @@
   proxy_->HideKeyboardContainer(container_.get());
 }
 
 void KeyboardController::AddBoundsChangedObserver(aura::Window* window) {
   aura::Window* target_window = window ? window->GetToplevelWindow() : nullptr;
   if (target_window)
     window_bounds_observer_->AddObservedWindow(target_window);
 }
 
 }  // namespace keyboard