scheduler: Implement WebFrameScheduler and WebPageScheduler

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..fd05d4b692328f14840379116af8b8a9281b144d 100644
--- a/content/test/fake_renderer_scheduler.cc
+++ b/content/test/fake_renderer_scheduler.cc
@@ -35,6 +35,16 @@ scoped_refptr<scheduler::TaskQueue> FakeRendererScheduler::TimerTaskRunner() {
   return nullptr;
 }
 
+scoped_refptr<scheduler::TaskQueue> FakeRendererScheduler::NewLoadingTaskRunner(
+    const char* name) {
+  return nullptr;
+}
+
+scoped_refptr<scheduler::TaskQueue> FakeRendererScheduler::NewTimerTaskRunner(
+    const char* name) {
+  return nullptr;
+}
+
 void FakeRendererScheduler::WillBeginFrame(const cc::BeginFrameArgs& args) {
 }