views: add layout delegates

ui/views/layout/grid_layout.cc

Index: ui/views/layout/grid_layout.cc
diff --git a/ui/views/layout/grid_layout.cc b/ui/views/layout/grid_layout.cc
index b45f1ca474dbdf7a17a9fd3acb1348b99213e9d2..41dcac0973c0ff760ce468722f312a69597c32e9 100644
--- a/ui/views/layout/grid_layout.cc
+++ b/ui/views/layout/grid_layout.cc
@@ -650,8 +650,12 @@ GridLayout::~GridLayout() {
 // static
 GridLayout* GridLayout::CreatePanel(View* host) {
   GridLayout* layout = new GridLayout(host);
-  layout->SetInsets(kPanelVertMargin, kButtonHEdgeMarginNew,
-                    kPanelVertMargin, kButtonHEdgeMarginNew);
+  LayoutDelegate* delegate = host->GetLayoutDelegate();
+  layout->SetInsets(
+      delegate->GetLayoutDistance(LayoutDelegate::PANEL_VERT_MARGIN),
+      delegate->GetLayoutDistance(LayoutDelegate::BUTTON_HEDGE_MARGIN_NEW),
+      delegate->GetLayoutDistance(LayoutDelegate::PANEL_VERT_MARGIN),
+      delegate->GetLayoutDistance(LayoutDelegate::BUTTON_HEDGE_MARGIN_NEW));
   return layout;
 }