Support finer grained font weights on Mac.

ui/views/examples/example_combobox_model.cc

Index: ui/views/examples/example_combobox_model.cc
diff --git a/ui/views/examples/example_combobox_model.cc b/ui/views/examples/example_combobox_model.cc
index a1160e7bb0e1f41bd158a1a9cad2f9b68fc2793b..ca5ad1553ab6bc192a98726aff901a1e8e5edfdf 100644
--- a/ui/views/examples/example_combobox_model.cc
+++ b/ui/views/examples/example_combobox_model.cc
@@ -9,9 +9,9 @@
 namespace views {
 namespace examples {
 
-ExampleComboboxModel::ExampleComboboxModel(const char** strings, int count)
-    : strings_(strings), count_(count) {
-}
+ExampleComboboxModel::ExampleComboboxModel(const char* const* strings,
+                                           int count)
+    : strings_(strings), count_(count) {}
 
 ExampleComboboxModel::~ExampleComboboxModel() {
 }