scheduler: Throttle timers in out-of-view frames

content/test/fake_renderer_scheduler.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_TEST_FAKE_RENDERER_SCHEDULER_H_
 #define CONTENT_TEST_FAKE_RENDERER_SCHEDULER_H_
 
 #include "base/macros.h"
 #include "components/scheduler/renderer/renderer_scheduler.h"
 
 namespace content {
 
 class FakeRendererScheduler : public scheduler::RendererScheduler {
  public:
   FakeRendererScheduler();
   ~FakeRendererScheduler() override;
 
   // RendererScheduler implementation.
   std::unique_ptr<blink::WebThread> CreateMainThread() override;
   scoped_refptr<scheduler::TaskQueue> DefaultTaskRunner() override;
   scoped_refptr<scheduler::TaskQueue> CompositorTaskRunner() override;
   scoped_refptr<scheduler::TaskQueue> LoadingTaskRunner() override;
   scoped_refptr<scheduler::SingleThreadIdleTaskRunner> IdleTaskRunner()
       override;
   scoped_refptr<scheduler::TaskQueue> TimerTaskRunner() override;
   scoped_refptr<scheduler::TaskQueue> NewLoadingTaskRunner(
       const char* name) override;
   scoped_refptr<scheduler::TaskQueue> NewTimerTaskRunner(
       const char* name) override;
+  scoped_refptr<scheduler::TaskQueue> NewDefaultTaskRunner(
+      const char* name) override;
   std::unique_ptr<scheduler::RenderWidgetSchedulingState>
   NewRenderWidgetSchedulingState() override;
   void WillBeginFrame(const cc::BeginFrameArgs& args) override;
   void BeginFrameNotExpectedSoon() override;
   void DidCommitFrameToCompositor() override;
   void DidHandleInputEventOnCompositorThread(
       const blink::WebInputEvent& web_input_event,
       InputEventState event_state) override;
   void DidHandleInputEventOnMainThread(
       const blink::WebInputEvent& web_input_event) override;
@@ skipping 19 matching lines @@
   void SetTopLevelBlameContext(
       base::trace_event::BlameContext* blame_context) override;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(FakeRendererScheduler);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_TEST_FAKE_RENDERER_SCHEDULER_H_