Aura overlay scrollbars adjust color for dark backgrounds

content/browser/renderer_host/render_view_host_impl.cc

Index: content/browser/renderer_host/render_view_host_impl.cc
diff --git a/content/browser/renderer_host/render_view_host_impl.cc b/content/browser/renderer_host/render_view_host_impl.cc
index b5a9d85d1c00b887e8bd8131defe541496da9ca9..bf2f7299cae149cadbe8fdfe6bb5ba1e7703e157 100644
--- a/content/browser/renderer_host/render_view_host_impl.cc
+++ b/content/browser/renderer_host/render_view_host_impl.cc
@@ -466,7 +466,7 @@ WebPreferences RenderViewHostImpl::ComputeWebkitPrefs() {
       command_line.HasSwitch(switches::kInertVisualViewport);
 
   prefs.pinch_overlay_scrollbar_thickness = 10;
-  prefs.use_solid_color_scrollbars = ui::IsOverlayScrollbarEnabled();
+  prefs.use_solid_color_scrollbars = false;
 
   prefs.history_entry_requires_user_gesture =
       command_line.HasSwitch(switches::kHistoryEntryRequiresUserGesture);
@@ -484,6 +484,8 @@ WebPreferences RenderViewHostImpl::ComputeWebkitPrefs() {
       base::FeatureList::IsEnabled(features::kAutoplayMutedVideos);
 
   prefs.progress_bar_completion = GetProgressBarCompletionPolicy();
+
+  prefs.use_solid_color_scrollbars = true;
 #endif
 
   // Handle autoplay gesture override experiment.