Allow expensive task blocking if there is pending iframe navigation

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..27eb277c12be960f043e80803911b61e41de4f29 100644
--- a/content/test/fake_renderer_scheduler.cc
+++ b/content/test/fake_renderer_scheduler.cc
@@ -86,10 +86,12 @@ void FakeRendererScheduler::OnRendererBackgrounded() {
 void FakeRendererScheduler::OnRendererForegrounded() {
 }
 
-void FakeRendererScheduler::AddPendingNavigation() {
+void FakeRendererScheduler::AddPendingNavigation(
+    blink::WebScheduler::NavigatingFrameType type) {
 }
 
-void FakeRendererScheduler::RemovePendingNavigation() {
+void FakeRendererScheduler::RemovePendingNavigation(
+    blink::WebScheduler::NavigatingFrameType type) {
 }
 
 void FakeRendererScheduler::OnNavigationStarted() {