Add a feature for not compositing small scrollers

content/child/runtime_features.cc

Index: content/child/runtime_features.cc
diff --git a/content/child/runtime_features.cc b/content/child/runtime_features.cc
index e2c64faa42a95e97621bc976505f9ece86c12695..0e25b680b06af68f3f37f46ee9fd34054246bac7 100644
--- a/content/child/runtime_features.cc
+++ b/content/child/runtime_features.cc
@@ -349,6 +349,9 @@ void SetRuntimeFeaturesDefaultsAndUpdateFromArgs(
     WebRuntimeFeatures::EnableFeatureFromString("CompositeOpaqueScrollers",
                                                 false);
 
+  if (base::FeatureList::IsEnabled(features::kSkipCompositingSmallScrollers))
+    WebRuntimeFeatures::EnableSkipCompositingSmallScrollers(true);
+
   if (base::FeatureList::IsEnabled(features::kGenericSensor))
     WebRuntimeFeatures::EnableGenericSensor(true);