Revert of 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 86dd667edea06682be8ae4d0070df004c4136e71..818d3c5c99aa9cbfb23464a3da96c36c8fc60a9e 100644
--- a/android_webview/browser/hardware_renderer.cc
+++ b/android_webview/browser/hardware_renderer.cc
@@ -93,11 +93,8 @@
   // 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_ = cc::LayerTreeHost::CreateSingleThreaded(
+      this, this, NULL, settings, NULL);
   layer_tree_host_->SetRootLayer(root_layer_);
   layer_tree_host_->SetLayerTreeHostClientReady();
   layer_tree_host_->set_has_transparent_background(true);