Clean up Document::isSecureContext

content/renderer/pepper/host_dispatcher_wrapper.cc

Index: content/renderer/pepper/host_dispatcher_wrapper.cc
diff --git a/content/renderer/pepper/host_dispatcher_wrapper.cc b/content/renderer/pepper/host_dispatcher_wrapper.cc
index 75b58eff2f1c8a8cc44eeaf4f21ec300f88b88b3..29a523caeaeb5d9f2281fe97e2a1efe05096a5f0 100644
--- a/content/renderer/pepper/host_dispatcher_wrapper.cc
+++ b/content/renderer/pepper/host_dispatcher_wrapper.cc
@@ -83,11 +83,8 @@ void HostDispatcherWrapper::AddInstance(PP_Instance instance) {
   if (host) {
     RenderFrame* render_frame = host->GetRenderFrameForInstance(instance);
     PepperPluginInstance* plugin_instance = host->GetPluginInstance(instance);
-    blink::WebString unused;
     bool is_privileged_context =
-        plugin_instance->GetContainer()
-            ->document()
-            .isSecureContext(unused) &&
+        plugin_instance->GetContainer()->document().isSecureContext() &&
         content::IsOriginSecure(plugin_instance->GetPluginURL());
     render_frame->Send(new FrameHostMsg_DidCreateOutOfProcessPepperInstance(
         plugin_child_id_, instance,