aura: Defer OutputSurface creation until widget is available

ui/views/cocoa/bridged_native_widget.mm

Index: ui/views/cocoa/bridged_native_widget.mm
diff --git a/ui/views/cocoa/bridged_native_widget.mm b/ui/views/cocoa/bridged_native_widget.mm
index c3e5470dc4512fe80d2c120055ff6eb833b72925..37c5050e2d431d1cf0288f3bfbdb50bcb510512a 100644
--- a/ui/views/cocoa/bridged_native_widget.mm
+++ b/ui/views/cocoa/bridged_native_widget.mm
@@ -1028,8 +1028,7 @@ void BridgedNativeWidget::CreateCompositor() {
       new ui::AcceleratedWidgetMac(needs_gl_finish_workaround));
   compositor_.reset(
       new ui::Compositor(context_factory, GetCompositorTaskRunner()));
-  compositor_->SetAcceleratedWidgetAndStartCompositor(
-      compositor_widget_->accelerated_widget());
+  compositor_->SetAcceleratedWidget(compositor_widget_->accelerated_widget());
   compositor_widget_->SetNSView(this);
 }