Set default fixed-position compositing setting to disabled

content/renderer/render_view_impl.cc

Index: content/renderer/render_view_impl.cc
diff --git a/content/renderer/render_view_impl.cc b/content/renderer/render_view_impl.cc
index 1d8d497874b5025ced296a445c4f2f52c7a7181c..b1a51cf992406544cf7c21e10c75408446a6cdd3 100644
--- a/content/renderer/render_view_impl.cc
+++ b/content/renderer/render_view_impl.cc
@@ -542,8 +542,8 @@ static bool ShouldUseFixedPositionCompositing(float device_scale_factor) {
           switches::kEnableHighDpiCompositingForFixedPosition))
     return true;
 
-  // Default, when no switches are specified, is also dependent on high-DPI.
-  return device_scale_factor > 1.0f;
+  // Default, when no switches are specified, is disabled.
+  return false;
 }
 
 ///////////////////////////////////////////////////////////////////////////////