Moves maintaining root_window_for_new_windows_ to Shell

chrome/browser/ui/ash/chrome_keyboard_ui.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 "chrome/browser/ui/ash/chrome_keyboard_ui.h"
 
 #include <utility>
 
 #include "ash/public/cpp/shell_window_ids.h"
 #include "ash/root_window_controller.h"
@@ skipping 120 matching lines @@
 }  // namespace
 
 ChromeKeyboardUI::ChromeKeyboardUI(content::BrowserContext* context)
     : keyboard::KeyboardUIContent(context) {}
 
 ChromeKeyboardUI::~ChromeKeyboardUI() {
   DCHECK(!keyboard_controller());
 }
 
 ui::InputMethod* ChromeKeyboardUI::GetInputMethod() {
-  aura::Window* root_window = ash::Shell::GetTargetRootWindow();
+  aura::Window* root_window = ash::Shell::GetRootWindowForNewWindows();
   DCHECK(root_window);
   return root_window->GetHost()->GetInputMethod();
 }
 
 void ChromeKeyboardUI::RequestAudioInput(
     content::WebContents* web_contents,
     const content::MediaStreamRequest& request,
     const content::MediaResponseCallback& callback) {
   const extensions::Extension* extension = NULL;
   GURL origin(request.security_origin);
@@ skipping 80 matching lines @@
   event_args->Append(std::move(input_context));
 
   std::unique_ptr<extensions::Event> event(new extensions::Event(
       extensions::events::VIRTUAL_KEYBOARD_PRIVATE_ON_TEXT_INPUT_BOX_FOCUSED,
       virtual_keyboard_private::OnTextInputBoxFocused::kEventName,
       std::move(event_args)));
   event->restrict_to_browser_context = browser_context();
   router->DispatchEventToExtension(kVirtualKeyboardExtensionID,
                                    std::move(event));
 }