Make SingleThreadProxy a SchedulerClient

android_webview/browser/hardware_renderer.cc

Index: android_webview/browser/hardware_renderer.cc
diff --git a/android_webview/browser/hardware_renderer.cc b/android_webview/browser/hardware_renderer.cc
index c2d1a6d8a520ee8c2a34013d00e5d83b03854c9f..28cec803ab7a589801d844c1e0c48f30689078d1 100644
--- a/android_webview/browser/hardware_renderer.cc
+++ b/android_webview/browser/hardware_renderer.cc
@@ -96,6 +96,9 @@ HardwareRenderer::HardwareRenderer(SharedRendererState* state)
   // Webview does not own the surface so should not clear it.
   settings.should_clear_root_render_pass = false;
 
+  // TODO(enne): Update this this compositor to use a synchronous scheduler.
+  settings.single_thread_proxy_scheduler = false;
+
   layer_tree_host_ =
       cc::LayerTreeHost::CreateSingleThreaded(this, this, NULL, settings, NULL);
   layer_tree_host_->SetRootLayer(root_layer_);