Add a signal to the scheduler that a navigation is expected

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 db095e7f89a91d6691ba4c462e63ebfe7a0a0bbf..2d0acae1d86a27d86555d6b4a03214e16a87018d 100644
--- a/content/test/fake_renderer_scheduler.cc
+++ b/content/test/fake_renderer_scheduler.cc
@@ -72,7 +72,13 @@ void FakeRendererScheduler::OnRendererBackgrounded() {
 void FakeRendererScheduler::OnRendererForegrounded() {
 }
 
-void FakeRendererScheduler::OnPageLoadStarted() {
+void FakeRendererScheduler::OnNavigationExpected() {
+}
+
+void FakeRendererScheduler::OnNavigationCanceled() {
+}
+
+void FakeRendererScheduler::OnNavigationStarted() {
 }
 
 bool FakeRendererScheduler::ShouldYieldForHighPriorityWork() {