Experimental 'purging and suspending' backgrounded tabs behind the flag

content/test/fake_renderer_scheduler.cc

Index: content/test/fake_renderer_scheduler.cc
diff --git a/content/test/fake_renderer_scheduler.cc b/content/test/fake_renderer_scheduler.cc
index 4f6e48b7f10964a70b9002c66dcb400d1f05f0ec..cae7b901f4cdd9223fdaddba9bd38f8c1ac520a8 100644
--- a/content/test/fake_renderer_scheduler.cc
+++ b/content/test/fake_renderer_scheduler.cc
@@ -86,6 +86,9 @@ void FakeRendererScheduler::OnRendererBackgrounded() {
 void FakeRendererScheduler::OnRendererForegrounded() {
 }
 
+void FakeRendererScheduler::SuspendRendererWhenBackgrounded() {
+}
+
 void FakeRendererScheduler::AddPendingNavigation() {
 }