cc: Fix multiple outstanding output surface requests

content/renderer/gpu/render_widget_compositor.cc

Index: content/renderer/gpu/render_widget_compositor.cc
diff --git a/content/renderer/gpu/render_widget_compositor.cc b/content/renderer/gpu/render_widget_compositor.cc
index 2b645e804fa43698b09f1915b0465e7250d2bf5a..501badafde0648d035df810e060417b1837ed02b 100644
--- a/content/renderer/gpu/render_widget_compositor.cc
+++ b/content/renderer/gpu/render_widget_compositor.cc
@@ -271,7 +271,7 @@ void RenderWidgetCompositor::Initialize() {
   settings.renderer_settings.allow_antialiasing &=
       !cmd->HasSwitch(cc::switches::kDisableCompositedAntialiasing);
   settings.single_thread_proxy_scheduler =
-      !cmd->HasSwitch(switches::kDisableSingleThreadProxyScheduler);
+      compositor_deps_->UseSingleThreadScheduler();
 
   // These flags should be mirrored by UI versions in ui/compositor/.
   settings.initial_debug_state.show_debug_borders =