Makes construction of (ash)RemoteWindowTreeHostWin explicit

ash/display/virtual_keyboard_window_controller.cc

 // Copyright 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 "ash/display/virtual_keyboard_window_controller.h"
 
 #include "ash/display/display_controller.h"
 #include "ash/display/display_info.h"
 #include "ash/display/display_manager.h"
 #include "ash/display/root_window_transformers.h"
 #include "ash/host/ash_window_tree_host.h"
+#include "ash/host/ash_window_tree_host_init_params.h"
 #include "ash/host/root_window_transformer.h"
 #include "ash/root_window_controller.h"
 #include "ash/root_window_settings.h"
 #include "ash/shell.h"
 #include "ash/shell_window_ids.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
 #include "ui/aura/env.h"
 #include "ui/aura/window_event_dispatcher.h"
 #include "ui/keyboard/keyboard_controller.h"
@@ skipping 13 matching lines @@
 
 void VirtualKeyboardWindowController::ActivateKeyboard(
     keyboard::KeyboardController* keyboard_controller) {
   root_window_controller_->ActivateKeyboard(keyboard_controller);
 }
 
 void VirtualKeyboardWindowController::UpdateWindow(
     const DisplayInfo& display_info) {
   static int virtual_keyboard_host_count = 0;
   if (!root_window_controller_.get()) {
-    const gfx::Rect& bounds_in_native = display_info.bounds_in_native();
-    AshWindowTreeHost* ash_host = AshWindowTreeHost::Create(bounds_in_native);
+    AshWindowTreeHostInitParams init_params;
+    init_params.initial_bounds = display_info.bounds_in_native();
+    AshWindowTreeHost* ash_host = AshWindowTreeHost::Create(init_params);
     aura::WindowTreeHost* host = ash_host->AsWindowTreeHost();
 
     host->window()->SetName(base::StringPrintf("VirtualKeyboardRootWindow-%d",
                                                virtual_keyboard_host_count++));
 
     // No need to remove WindowTreeHostObserver because the DisplayController
     // outlives the host.
     host->AddObserver(Shell::GetInstance()->display_controller());
     InitRootWindowSettings(host->window())->display_id = display_info.id();
     host->InitHost();
@@ skipping 42 matching lines @@
   Shell::GetInstance()->CreateKeyboard();
 }
 
 void VirtualKeyboardWindowController::OnMaximizeModeEnded() {
   keyboard::SetTouchKeyboardEnabled(false);
   if (!keyboard::IsKeyboardEnabled())
     Shell::GetInstance()->DeactivateKeyboard();
 }
 
 }  // namespace ash