harmony: convert device chooser

chrome/browser/ui/views/harmony/sized_dialog_client_view.cc

+// Copyright 2017 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/views/harmony/sized_dialog_client_view.h"
+
+SizedDialogClientView::SizedDialogClientView(views::Widget* widget,
+                                             views::View* content_view,
+                                             const gfx::Size& minimum_size)
+    : views::DialogClientView(widget, content_view),
+      minimum_size_(minimum_size) {}
+
+SizedDialogClientView::~SizedDialogClientView() {}
+
+gfx::Size SizedDialogClientView::GetPreferredSize() const {
+  gfx::Size size = DialogClientView::GetPreferredSize();
+  size.SetToMax(minimum_size_);
+  return size;
+}