Makes construction of (ash)RemoteWindowTreeHostWin explicit

ash/host/ash_window_tree_host_init_params.h

Index: ash/host/ash_window_tree_host_init_params.h
diff --git a/ash/host/ash_window_tree_host_init_params.h b/ash/host/ash_window_tree_host_init_params.h
new file mode 100644
index 0000000000000000000000000000000000000000..d9bb7de96cd4d60e127be9098f96c8ef88b3d6f3
--- /dev/null
+++ b/ash/host/ash_window_tree_host_init_params.h
@@ -0,0 +1,32 @@
+// 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.
+
+#ifndef ASH_HOST_WINDOW_TREE_HOST_INIT_PARAMS_H_
+#define ASH_HOST_WINDOW_TREE_HOST_INIT_PARAMS_H_
+
+#include "build/build_config.h"
+
+#if defined(OS_WIN)
+#include <windows.h>
+#endif
+
+#include "ash/ash_export.h"
+#include "ui/gfx/geometry/rect.h"
+
+namespace ash {
+
+struct ASH_EXPORT AshWindowTreeHostInitParams {
+  AshWindowTreeHostInitParams();
+  ~AshWindowTreeHostInitParams();
+
+  gfx::Rect initial_bounds;
+
+#if defined(OS_WIN)
+  HWND remote_hwnd;
+#endif
+};
+
+}  // namespace ash
+
+#endif  // ASH_HOST_WINDOW_TREE_HOST_INIT_PARAMS_H_