Reduce/remove usage of BrowserThread in content/browser/loader.

content/browser/loader/loader_io_thread_notifier.cc

 // Copyright 2016 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 "content/browser/loader/loader_io_thread_notifier.h"
 
 #include "content/browser/frame_host/render_frame_host_impl.h"
 #include "content/browser/loader/global_routing_id.h"
+#include "content/browser/loader/loader_globals.h"
 #include "content/browser/loader/resource_dispatcher_host_impl.h"
-#include "content/public/browser/browser_thread.h"

[jam, 2017/03/29 15:44:32]

this file isn't going to move, since it's using RenderFrameHost. so no need to
change it

[ananta, 2017/03/29 19:41:04]

Thanks. done

 
 namespace content {
 
 namespace {
 
 void NotifyRenderFrameDeletedOnIO(const GlobalFrameRoutingId& id) {
   ResourceDispatcherHostImpl* rdhi = ResourceDispatcherHostImpl::Get();
   if (rdhi)
     rdhi->OnRenderFrameDeleted(id);
 }
 
 }  // namespace
 
 LoaderIOThreadNotifier::LoaderIOThreadNotifier(WebContents* web_contents)
     : WebContentsObserver(web_contents) {}
 
 LoaderIOThreadNotifier::~LoaderIOThreadNotifier() {}
 
 void LoaderIOThreadNotifier::RenderFrameDeleted(
     RenderFrameHost* render_frame_host) {
-  BrowserThread::PostTask(
-      BrowserThread::IO, FROM_HERE,
-      base::Bind(&NotifyRenderFrameDeletedOnIO,
-                 static_cast<RenderFrameHostImpl*>(render_frame_host)
-                     ->GetGlobalFrameRoutingId()));
+  LoaderGlobals::Get()->io_thread_task_runner()->PostTask(
+      FROM_HERE, base::Bind(&NotifyRenderFrameDeletedOnIO,
+                            static_cast<RenderFrameHostImpl*>(render_frame_host)
+                                ->GetGlobalFrameRoutingId()));
 }
 
 }  // namespace content