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

content/plugin/plugin_channel.h

Index: content/plugin/plugin_channel.h
diff --git a/content/plugin/plugin_channel.h b/content/plugin/plugin_channel.h
index d3106b347c52c334ea02f2834cb95161f6d40896..ee01023629e2486a32494bb9e94cafc3eadb20a5 100644
--- a/content/plugin/plugin_channel.h
+++ b/content/plugin/plugin_channel.h
@@ -27,7 +27,7 @@ class PluginChannel : public NPChannelBase {
   // given renderer process. The renderer ID is an opaque unique ID generated
   // by the browser.
   static PluginChannel* GetPluginChannel(
-      int renderer_id, base::MessageLoopProxy* ipc_message_loop);
+      int renderer_id, base::SingleThreadTaskRunner* ipc_task_runner);
 
   // Send a message to all renderers that the process is going to shutdown.
   static void NotifyRenderersOfPendingShutdown();
@@ -61,7 +61,7 @@ class PluginChannel : public NPChannelBase {
 
   // NPChannelBase::
   void CleanUp() override;
-  bool Init(base::MessageLoopProxy* ipc_message_loop,
+  bool Init(base::SingleThreadTaskRunner* ipc_task_runner,
             bool create_pipe_now,
             base::WaitableEvent* shutdown_event) override;