Revert of Revert "Post loading tasks on the appropriate WebFrameScheduler's queue."

third_party/WebKit/Source/platform/TimerTest.cpp

 // Copyright 2015 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.
 
 #include "config.h"
 #include "platform/Timer.h"
 
 #include "public/platform/Platform.h"
 #include "public/platform/WebScheduler.h"
 #include "public/platform/WebThread.h"
@@ skipping 59 matching lines @@
     RefPtr<RefCountedTaskContainer> m_task;
     double m_runTimeSeconds;
     double m_delaySeconds;
 };
 
 class MockWebTaskRunner : public WebTaskRunner {
 public:
     explicit MockWebTaskRunner(std::priority_queue<DelayedTask>* timerTasks) : m_timerTasks(timerTasks) { }
     ~MockWebTaskRunner() override { }
 
-    virtual void postTask(const WebTraceLocation&, Task* task)
+    void postTask(const WebTraceLocation&, Task* task) override
     {
         m_timerTasks->push(DelayedTask(task, 0));
     }
 
     void postDelayedTask(const WebTraceLocation&, Task* task, double delayMs) override
     {
         m_timerTasks->push(DelayedTask(task, delayMs * 0.001));
     }
 
+    WebTaskRunner* clone() override
+    {
+        ASSERT_NOT_REACHED();
+        return nullptr;
+    }
+
     std::priority_queue<DelayedTask>* m_timerTasks; // NOT OWNED
 };
 
 class MockWebScheduler : public WebScheduler {
 public:
     MockWebScheduler() : m_timerWebTaskRunner(&m_timerTasks) { }
     ~MockWebScheduler() override { }
 
     bool shouldYieldForHighPriorityWork() override
     {
@@ skipping 713 matching lines @@
         m_startTime + 6.0,
         m_startTime + 8.0,
         m_startTime + 10.0,
         m_startTime + 14.0,
         m_startTime + 18.0,
         m_startTime + 28.0));
 }
 
 } // namespace
 } // namespace blink