Web MIDI: prepare to pass a security origin from blink to browser

content/renderer/media/renderer_webmidiaccessor_impl.cc

 // Copyright (c) 2013 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/media/renderer_webmidiaccessor_impl.h"
 
 #include "base/logging.h"
 #include "content/renderer/media/midi_message_filter.h"
 #include "content/renderer/render_thread_impl.h"
 
 namespace content {
 
 RendererWebMIDIAccessorImpl::RendererWebMIDIAccessorImpl(
     WebKit::WebMIDIAccessorClient* client)
     : client_(client) {
   DCHECK(client_);
 }
 
 RendererWebMIDIAccessorImpl::~RendererWebMIDIAccessorImpl() {
   midi_message_filter()->RemoveClient(client_);
 }
 
 void RendererWebMIDIAccessorImpl::requestAccess(bool access) {
-  midi_message_filter()->RequestAccess(client_, access ? 1 : 0);
+  midi_message_filter()->RequestAccess(std::string(), client_, access ? 1 : 0);
+}
+
+void RendererWebMIDIAccessorImpl::requestAccess(const WebKit::WebString& origin,
+                                                bool access) {
+  midi_message_filter()->RequestAccess(origin.utf8(), client_, access ? 1 : 0);
 }
 
 void RendererWebMIDIAccessorImpl::sendMIDIData(
     unsigned port_index,
     const unsigned char* data,
     size_t length,
     double timestamp) {
   midi_message_filter()->SendMIDIData(
       port_index,
       data,
       length,
       timestamp);
 }
 
 MIDIMessageFilter* RendererWebMIDIAccessorImpl::midi_message_filter() {
   return RenderThreadImpl::current()->midi_message_filter();
 }
 
 }  // namespace content