MacViews: Style BUTTON_STYLE buttons using the "modern" UI

ui/views/style/platform_style_linux.cc

Index: ui/views/style/platform_style_linux.cc
diff --git a/ui/views/style/platform_style_linux.cc b/ui/views/style/platform_style_linux.cc
index 36e3de58f4dcdcb3d47894fb2a97769b38922e03..829d96d6e7894baf8e4894f7007c06068eec2f6e 100644
--- a/ui/views/style/platform_style_linux.cc
+++ b/ui/views/style/platform_style_linux.cc
@@ -19,4 +19,12 @@ scoped_ptr<Border> PlatformStyle::CreateThemedLabelButtonBorder(
   return button->CreateDefaultBorder();
 }
 
+void PlatformStyle::ApplyLabelButtonTextStyle(Label* label,
+                                              ButtonColorByState* colors) {
+  // TODO(erg): This is disabled on desktop linux because of the binary asset
+  // confusion. These details should either be pushed into ui::NativeThemeWin
+  // or should be obsoleted by rendering buttons with paint calls instead of
+  // with static assets. http://crbug.com/350498
+}
+
 }  // namespace views