Queue callbacks in PluginService::GetPlugins.

content/browser/plugin_service.h

Index: content/browser/plugin_service.h
diff --git a/content/browser/plugin_service.h b/content/browser/plugin_service.h
index b53bb5d65eff006b1339431593a406973c109f0d..3fac1af1c8e77758bcc936b4babc632276247a12 100644
--- a/content/browser/plugin_service.h
+++ b/content/browser/plugin_service.h
@@ -37,6 +37,7 @@
 
 struct PepperPluginInfo;
 class PluginDirWatcherDelegate;
+class PluginLoader;
 
 namespace base {
 class MessageLoopProxy;
@@ -198,6 +199,12 @@ class CONTENT_EXPORT PluginService
   void GetPluginsInternal(base::MessageLoopProxy* target_loop,
                           const GetPluginsCallback& callback);
 
+#if defined(OS_POSIX)
+  void LoadPluginsOutOfProcess(
+      base::MessageLoopProxy* target_loop,
+      const PluginService::GetPluginsCallback& callback);
+#endif
+
   // Binding directly to GetAllowedPluginForOpenChannelToPlugin() isn't possible
   // because more arity is needed <http://crbug.com/98542>. This just forwards.
   void ForwardGetAllowedPluginForOpenChannelToPlugin(
@@ -257,6 +264,10 @@ class CONTENT_EXPORT PluginService
 
   std::set<PluginProcessHost::Client*> pending_plugin_clients_;
 
+#if defined(OS_POSIX)
+  scoped_refptr<PluginLoader> plugin_loader_;
+#endif
+
   DISALLOW_COPY_AND_ASSIGN(PluginService);
 };