Broke out layout metric information from ViewsDelegate to LayoutProvider

chrome/browser/ui/views/harmony/harmony_views_layout_delegate.h

+// 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.
+
+#ifndef CHROME_BROWSER_UI_VIEWS_HARMONY_HARMONY_VIEWS_LAYOUT_DELEGATE_H_
+#define CHROME_BROWSER_UI_VIEWS_HARMONY_HARMONY_VIEWS_LAYOUT_DELEGATE_H_
+
+#include <memory>
+
+#include "base/macros.h"
+#include "chrome/browser/ui/views/harmony/chrome_views_layout_delegate.h"
+#include "ui/gfx/geometry/insets.h"
+#include "ui/views/layout/grid_layout.h"
+
+class HarmonyViewsLayoutDelegate : public ChromeViewsLayoutDelegate {
+ public:
+  // The Harmony layout unit. All distances are in terms of this unit.
+  static constexpr int kHarmonyLayoutUnit = 16;
+
+  HarmonyViewsLayoutDelegate() {}
+  ~HarmonyViewsLayoutDelegate() override {}
+
+  gfx::Insets GetInsetsMetric(ChromeInsetsMetric metric) const override;
+  int GetDistanceMetric(ChromeDistanceMetric metric) const override;
+  views::GridLayout::Alignment GetControlLabelGridAlignment() const override;
+  bool UseExtraDialogPadding() const override;
+  bool ShouldShowWindowIcon() const override;
+  bool IsHarmonyMode() const override;
+  int GetDialogPreferredWidth(DialogWidth width) const override;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(HarmonyViewsLayoutDelegate);
+};
+
+#endif  // CHROME_BROWSER_UI_VIEWS_HARMONY_HARMONY_VIEWS_LAYOUT_DELEGATE_H_