[scheduler] Use Finch to control background throttling.

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 14a3e97ea2d7698f053d971bfdde86b86d814da8..e233ef9de085536c12d8e30f8f6598ce034fbec2 100644
--- a/content/renderer/render_view_impl.cc
+++ b/content/renderer/render_view_impl.cc
@@ -1095,6 +1095,15 @@ void RenderView::ApplyWebPreferences(const WebPreferences& prefs,
       prefs.default_minimum_page_scale_factor,
       prefs.default_maximum_page_scale_factor);
 
+  settings->setExpensiveBackgroundThrottlingCPUBudget(
+      prefs.expensive_background_throttling_cpu_budget);
+  settings->setExpensiveBackgroundThrottlingInitialBudget(
+      prefs.expensive_background_throttling_initial_budget);
+  settings->setExpensiveBackgroundThrottlingMaxBudget(
+      prefs.expensive_background_throttling_max_budget);
+  settings->setExpensiveBackgroundThrottlingMaxDelay(
+      prefs.expensive_background_throttling_max_delay);
+
 #if defined(OS_ANDROID)
   settings->setAllowCustomScrollbarInMainFrame(false);
   settings->setTextAutosizingEnabled(prefs.text_autosizing_enabled);