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

content/renderer/media/midi_message_filter.h

Index: content/renderer/media/midi_message_filter.h
diff --git a/content/renderer/media/midi_message_filter.h b/content/renderer/media/midi_message_filter.h
index c34ce53225fa7419a192a12529b5eecda2117c0e..9ad6c1232aa20ffd3c314258015ff8cbd7351fee 100644
--- a/content/renderer/media/midi_message_filter.h
+++ b/content/renderer/media/midi_message_filter.h
@@ -32,7 +32,9 @@ class CONTENT_EXPORT MIDIMessageFilter
   // If permission is granted, then the client's
   // addInputPort() and addOutputPort() methods will be called,
   // giving the client access to receive and send data.
-  void RequestAccess(WebKit::WebMIDIAccessorClient* client, int access);
+  void RequestAccess(const std::string& origin,
+                     WebKit::WebMIDIAccessorClient* client,
+                     int access);
   void RemoveClient(WebKit::WebMIDIAccessorClient* client);
 
   // A client will only be able to call this method if it has a suitable
@@ -84,7 +86,9 @@ class CONTENT_EXPORT MIDIMessageFilter
                           const std::vector<uint8>& data,
                           double timestamp);
 
-  void RequestAccessOnIOThread(int client_id, int access);
+  void RequestAccessOnIOThread(const std::string& origin,
+                               int client_id,
+                               int access);
 
   void SendMIDIDataOnIOThread(int port,
                               const std::vector<uint8>& data,