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

third_party/WebKit/public/platform/WebTaskRunner.h

Index: third_party/WebKit/public/platform/WebTaskRunner.h
diff --git a/third_party/WebKit/public/platform/WebTaskRunner.h b/third_party/WebKit/public/platform/WebTaskRunner.h
index 6d12febc5cacccda929f0202888f522cdabebf7a..4369ad949589fefd4217b8656f6daffa59611e98 100644
--- a/third_party/WebKit/public/platform/WebTaskRunner.h
+++ b/third_party/WebKit/public/platform/WebTaskRunner.h
@@ -28,14 +28,11 @@
 
     // Schedule a task to be run on the the associated WebThread.
     // Takes ownership of |Task|. Can be called from any thread.
-    virtual void postTask(const WebTraceLocation&, Task*) = 0;
+    virtual void postTask(const WebTraceLocation&, Task*) {}
 
     // Schedule a task to be run after |delayMs| on the the associated WebThread.
     // Takes ownership of |Task|. Can be called from any thread.
-    virtual void postDelayedTask(const WebTraceLocation&, Task*, double delayMs) = 0;
-
-    // Returns a clone of the WebTaskRunner.
-    virtual WebTaskRunner* clone() = 0;
+    virtual void postDelayedTask(const WebTraceLocation&, Task*, double delayMs) {}
 
 #ifdef INSIDE_BLINK
     // Helpers for posting bound functions as tasks.