Enable compositing of scrolling content on low-DPI when LCD text will be maintained

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 6445793e2d18e1583ad0206b114692ddca77ab5f..e1a081270524069280d199ed16e7ecfbf2ba6684 100644
--- a/content/child/runtime_features.cc
+++ b/content/child/runtime_features.cc
@@ -302,6 +302,10 @@ void SetRuntimeFeaturesDefaultsAndUpdateFromArgs(
   if (base::FeatureList::IsEnabled(features::kGamepadExtensions))
     WebRuntimeFeatures::enableGamepadExtensions(true);
 
+  if (!base::FeatureList::IsEnabled(features::kCompositeOpaqueScrollers))
+    WebRuntimeFeatures::enableFeatureFromString("CompositeOpaqueScrollers",
+        false);
+
   // Enable explicitly enabled features, and then disable explicitly disabled
   // ones.
   if (command_line.HasSwitch(switches::kEnableBlinkFeatures)) {