Remove GridLayout::SetInsets in favor of an empty border on the host.

mash/example/window_type_launcher/window_type_launcher.cc

Index: mash/example/window_type_launcher/window_type_launcher.cc
diff --git a/mash/example/window_type_launcher/window_type_launcher.cc b/mash/example/window_type_launcher/window_type_launcher.cc
index 8add499098ab42bb78100766fb0e16c3377597af..76efd2eb99c91b08c116701d660e6cf6e85578ec 100644
--- a/mash/example/window_type_launcher/window_type_launcher.cc
+++ b/mash/example/window_type_launcher/window_type_launcher.cc
@@ -267,8 +267,8 @@ class WindowTypeLauncherView : public views::WidgetDelegateView,
         jank_button_(
             MdTextButton::Create(this, base::ASCIIToUTF16("Jank for (s):"))),
         jank_duration_field_(new views::Textfield) {
+    SetBorder(views::CreateEmptyBorder(gfx::Insets(5)));
     views::GridLayout* layout = new views::GridLayout(this);
-    layout->SetInsets(5, 5, 5, 5);
     SetLayoutManager(layout);
     views::ColumnSet* column_set = layout->AddColumnSet(0);
     column_set->AddColumn(views::GridLayout::LEADING,