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

third_party/WebKit/Source/core/dom/ScriptRunnerTest.cpp

Index: third_party/WebKit/Source/core/dom/ScriptRunnerTest.cpp
diff --git a/third_party/WebKit/Source/core/dom/ScriptRunnerTest.cpp b/third_party/WebKit/Source/core/dom/ScriptRunnerTest.cpp
index 6db3012492d6c6c1ed3e4c5df48d9edb7500059b..18683001e3bf3f5fd67bf6d60f0ff6aafe947c02 100644
--- a/third_party/WebKit/Source/core/dom/ScriptRunnerTest.cpp
+++ b/third_party/WebKit/Source/core/dom/ScriptRunnerTest.cpp
@@ -72,7 +72,7 @@
     explicit MockWebTaskRunner(Deque<OwnPtr<WebTaskRunner::Task>>* tasks) : m_tasks(tasks) { }
     ~MockWebTaskRunner() override { }
 
-    virtual void postTask(const WebTraceLocation&, Task* task)
+    void postTask(const WebTraceLocation&, Task* task) override
     {
         m_tasks->append(adoptPtr(task));
     }
@@ -80,6 +80,12 @@
     void postDelayedTask(const WebTraceLocation&, Task* task, double delayMs) override
     {
         ASSERT_NOT_REACHED();
+    }
+
+    WebTaskRunner* clone() override
+    {
+        ASSERT_NOT_REACHED();
+        return nullptr;
     }
 
     Deque<OwnPtr<WebTaskRunner::Task>>* m_tasks; // NOT OWNED