Revert of Use timer task queue for RenderMediaLog

content/renderer/render_frame_impl.cc

Index: content/renderer/render_frame_impl.cc
diff --git a/content/renderer/render_frame_impl.cc b/content/renderer/render_frame_impl.cc
index 86ee5b351e58b104d9623a3e03e3c8aeb472c593..223e6d3cc45e5656fbd0dfefbc6595f354789ba6 100644
--- a/content/renderer/render_frame_impl.cc
+++ b/content/renderer/render_frame_impl.cc
@@ -2820,8 +2820,7 @@
       RenderThreadImpl::current()->SharedMainThreadContextProvider());
 
   scoped_refptr<media::MediaLog> media_log(
-      new RenderMediaLog(url::Origin(frame_->getSecurityOrigin()).GetURL(),
-                         frame_->timerTaskRunner()));
+      new RenderMediaLog(url::Origin(frame_->getSecurityOrigin()).GetURL()));
 
 #if defined(OS_ANDROID)
   if (UseWebMediaPlayerImpl(url) && !media_surface_manager_)
@@ -6141,8 +6140,7 @@
 
   return new WebMediaPlayerMS(
       frame_, client, GetWebMediaPlayerDelegate(),
-      new RenderMediaLog(url::Origin(security_origin).GetURL(),
-                         frame_->timerTaskRunner()),
+      new RenderMediaLog(url::Origin(security_origin).GetURL()),
       CreateRendererFactory(), render_thread->GetIOTaskRunner(),
       compositor_task_runner, render_thread->GetMediaThreadTaskRunner(),
       render_thread->GetWorkerTaskRunner(), render_thread->GetGpuFactories(),