Revert of Pending tasks in a message loop should be deleted before shutting down Blink

content/renderer/render_thread_impl.cc

Index: content/renderer/render_thread_impl.cc
diff --git a/content/renderer/render_thread_impl.cc b/content/renderer/render_thread_impl.cc
index a6924ad10c64a3f8ae13117efb978d96b16d60d3..3842bca15684605283d42e4376996aeb1eb0c7fa 100644
--- a/content/renderer/render_thread_impl.cc
+++ b/content/renderer/render_thread_impl.cc
@@ -396,13 +396,6 @@
   Init();
 }
 
-RenderThreadImpl::RenderThreadImpl(
-    scoped_ptr<base::MessageLoop> main_message_loop)
-    : ChildThread(Options(ShouldUseMojoChannel())),
-      main_message_loop_(main_message_loop.Pass()) {
-  Init();
-}
-
 void RenderThreadImpl::Init() {
   TRACE_EVENT_BEGIN_ETW("RenderThreadImpl::Init", 0, "");
 
@@ -659,10 +652,6 @@
 
   main_thread_compositor_task_runner_ = NULL;
 
-  // Shut down the message loop before shutting down Blink.
-  // This prevents a scenario where a pending task in the message loop accesses
-  // Blink objects after Blink shuts down.
-  main_message_loop_.reset();
   if (webkit_platform_support_)
     blink::shutdown();