1 files changed, 9 insertions, 0 deletions
diff --git a/views/widget/widget.h b/views/widget/widget.h
index 9af8da2..463f547 100644
--- a/views/widget/widget.h
+++ b/views/widget/widget.h
@@ -464,6 +464,12 @@ class Widget : public internal::NativeWidgetDelegate,
     return non_client_view()->client_view();
   }
 
+#if defined(UNIT_TEST)
+  static void set_compositor_factory(ui::Compositor*(*factory)()) {
+    factory_ = factory;
+  }
+#endif
+
   const ui::Compositor* compositor() const { return compositor_.get(); }
   ui::Compositor* compositor() { return compositor_.get(); }
 
@@ -636,6 +642,9 @@ class Widget : public internal::NativeWidgetDelegate,
   // The smallest size the window can be.
   gfx::Size minimum_size_;
 
+  // Factory used to create Compositors. Settable by tests.
+  static ui::Compositor*(*factory_)();
+
   DISALLOW_COPY_AND_ASSIGN(Widget);
 };