views: add layout delegates

chrome/browser/ui/views/layout_utils.cc

+// Copyright 2016 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/layout_utils.h"
+
+#include "chrome/browser/ui/views/harmony/layout_delegate.h"
+#include "ui/views/layout/grid_layout.h"
+#include "ui/views/view.h"
+
+namespace layout_utils {
+
+views::GridLayout* CreatePanelLayout(views::View* host) {
+  views::GridLayout* layout = new views::GridLayout(host);
+  LayoutDelegate* delegate = LayoutDelegate::Get();
+  layout->SetInsets(gfx::Insets(
+      delegate->GetLayoutDistance(
+          LayoutDelegate::LayoutDistanceType::PANEL_VERT_MARGIN),
+      delegate->GetLayoutDistance(
+          LayoutDelegate::LayoutDistanceType::BUTTON_HEDGE_MARGIN_NEW)));
+  host->SetLayoutManager(layout);
+  return layout;
+}
+
+}  // namespace layout_utils