Makes construction of (ash)RemoteWindowTreeHostWin explicit

ash/host/ash_window_tree_host_ozone.cc

 // Copyright 2014 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/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/host/transformer_helper.h"
 #include "base/command_line.h"
 #include "ui/aura/window_tree_host_ozone.h"
 #include "ui/gfx/geometry/insets.h"
 #include "ui/gfx/transform.h"
 
 namespace ash {
 namespace {
 
@@ skipping 64 matching lines @@
 gfx::Transform AshWindowTreeHostOzone::GetInverseRootTransform() const {
   return transformer_helper_.GetInverseTransform();
 }
 
 void AshWindowTreeHostOzone::UpdateRootWindowSize(const gfx::Size& host_size) {
   transformer_helper_.UpdateWindowSize(host_size);
 }
 
 }  // namespace
 
-AshWindowTreeHost* AshWindowTreeHost::Create(const gfx::Rect& initial_bounds) {
-  return new AshWindowTreeHostOzone(initial_bounds);
+AshWindowTreeHost* AshWindowTreeHost::Create(
+    const AshWindowTreeHostInitParams& init_params) {
+  return new AshWindowTreeHostOzone(intial_params.initial_bounds);
 }
 
 }  // namespace ash