Update content/ to use scoped_refptr<T>::get() rather than implicit "operator T*"

content/renderer/plugin_channel_host.cc

Index: content/renderer/plugin_channel_host.cc
diff --git a/content/renderer/plugin_channel_host.cc b/content/renderer/plugin_channel_host.cc
index b49b093380084c63a5d082dc36c4c6fe56c11e3a..118dc5e7ccccf7e6af0aee1f030b936726845d73 100644
--- a/content/renderer/plugin_channel_host.cc
+++ b/content/renderer/plugin_channel_host.cc
@@ -144,7 +144,7 @@ bool PluginChannelHost::Init(base::MessageLoopProxy* ipc_message_loop,
       NPChannelBase::Init(ipc_message_loop, create_pipe_now, shutdown_event);
   if (ret) {
     is_listening_filter_ = new IsListeningFilter;
-    channel_->AddFilter(is_listening_filter_);
+    channel_->AddFilter(is_listening_filter_.get());
   }
   return ret;
 }