Move responsiblity of tab suspending from renderer to TabManager

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..165e451ec114f93c02b08c85c28524073228f599 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::OnRendererSuspend() {
+}
+
 void FakeRendererScheduler::AddPendingNavigation() {
 }