Remove old Authentication code that we don't use or need.

remoting/client/plugin/chromoting_scriptable_object.h

Index: remoting/client/plugin/chromoting_scriptable_object.h
diff --git a/remoting/client/plugin/chromoting_scriptable_object.h b/remoting/client/plugin/chromoting_scriptable_object.h
index 7d1574485a4c7a9e946233f8dd6f4b86b7287f56..11e640171b610a66ac3d17073320252a9ad8872f 100644
--- a/remoting/client/plugin/chromoting_scriptable_object.h
+++ b/remoting/client/plugin/chromoting_scriptable_object.h
@@ -45,17 +45,6 @@
 //
 //   attribute Function desktopSizeUpdate;
 //
-//   // This function is called when login information for the host machine is
-//   // needed.
-//   //
-//   // User of this object should respond with calling submitLoginInfo() when
-//   // username and password is available.
-//   //
-//   // This function will be called multiple times until login was successful
-//   // or the maximum number of login attempts has been reached. In the
-//   // later case |connection_status| is changed to STATUS_FAILED.
-//   attribute Function loginChallenge;
-//
 //   // JS callback function to send an XMPP IQ stanza for performing the
 //   // signaling in a jingle connection.  The callback function should be
 //   // of type void(string request_xml).
@@ -97,9 +86,6 @@
 //   // Terminating a Chromoting connection.
 //   void disconnect();
 //
-//   // Method for submitting login information.
-//   void submitLoginInfo(string username, string password);
-//
 //   // Method for setting scale-to-fit.
 //   void setScaleToFit(bool scale_to_fit);
 //
@@ -177,9 +163,6 @@ class ChromotingScriptableObject
   void LogDebugInfo(const std::string& info);
   void SetDesktopSize(int width, int height);
 
-  // This should be called to signal JS code to provide login information.
-  void SignalLoginChallenge();
-
   // Attaches the XmppProxy used for issuing and receivng IQ stanzas for
   // initializing a jingle connection from within the sandbox.
   void AttachXmppProxy(PepperXmppProxy* xmpp_proxy);
@@ -224,15 +207,11 @@ class ChromotingScriptableObject
   // JavaScript event handlers may destroy the plugin.
   void DoSignalConnectionInfoChange();
   void DoSignalDesktopSizeChange();
-  void DoSignalLoginChallenge();
   void DoSendIq(const std::string& message_xml);
 
   pp::Var DoConnect(const std::vector<pp::Var>& args, pp::Var* exception);
   pp::Var DoDisconnect(const std::vector<pp::Var>& args, pp::Var* exception);
 
-  // This method is called by JS to provide login information.
-  pp::Var DoSubmitLogin(const std::vector<pp::Var>& args, pp::Var* exception);
-
   // This method is called by JS to set scale-to-fit.
   pp::Var DoSetScaleToFit(const std::vector<pp::Var>& args, pp::Var* exception);