content/child: Remove use of MessageLoopProxy and deprecated MessageLoop APIs

content/renderer/npapi/webplugin_delegate_proxy.cc

 // Copyright (c) 2012 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/renderer/npapi/webplugin_delegate_proxy.h"
 
 #include <algorithm>
 
 #include "base/auto_reset.h"
 #include "base/basictypes.h"
@@ skipping 303 matching lines @@
         LOG(ERROR) << "Plugin crashed on start";
 
         // Return true so that the plugin widget is created and we can paint the
         // crashed plugin there.
         return true;
       }
       LOG(ERROR) << "Plugin couldn't be found";
       return false;
     }
 
-    channel_host =
-        PluginChannelHost::GetPluginChannelHost(
-            channel_handle, ChildProcess::current()->io_message_loop_proxy());
+    channel_host = PluginChannelHost::GetPluginChannelHost(
+        channel_handle, ChildProcess::current()->io_task_runner());
     if (!channel_host.get()) {
       LOG(ERROR) << "Couldn't get PluginChannelHost";
       continue;
     }
 #if defined(OS_MACOSX)
     track_nested_removes.reset();
 #endif
 
     {
       // TODO(bauerb): Debugging for http://crbug.com/141055.
@@ skipping 899 matching lines @@
 
   plugin_->URLRedirectResponse(allow, resource_id);
 }
 
 void WebPluginDelegateProxy::OnCheckIfRunInsecureContent(const GURL& url,
                                                          bool* result) {
   *result = plugin_->CheckIfRunInsecureContent(url);
 }
 
 }  // namespace content