"Bootstrap" a toolkit-views Typography spec.

ui/views/mus/aura_init.cc

Index: ui/views/mus/aura_init.cc
diff --git a/ui/views/mus/aura_init.cc b/ui/views/mus/aura_init.cc
index eff8317ef121ed585070fcc3b2cab8f5542f10cd..fe7406ccf782b713366af090c6bb3c01baa2a31f 100644
--- a/ui/views/mus/aura_init.cc
+++ b/ui/views/mus/aura_init.cc
@@ -20,6 +20,7 @@
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/base/ui_base_paths.h"
 #include "ui/views/mus/mus_client.h"
+#include "ui/views/style/typography_provider.h"
 #include "ui/views/views_delegate.h"
 
 #if defined(OS_LINUX)
@@ -43,6 +44,12 @@ class MusViewsDelegate : public ViewsDelegate {
       Widget::InitParams* params,
       internal::NativeWidgetDelegate* delegate) override {}
 
+  const TypographyProvider& GetTypographyProvider() const override {
+    return typography_provider_;
+  }
+
+  DefaultTypographyProvider typography_provider_;
+
   DISALLOW_COPY_AND_ASSIGN(MusViewsDelegate);
 };