[Chromoting] Add ProcessStatsDispatcher to send process stats to the client

remoting/host/security_key/security_key_extension_session.cc

Index: remoting/host/security_key/security_key_extension_session.cc
diff --git a/remoting/host/security_key/security_key_extension_session.cc b/remoting/host/security_key/security_key_extension_session.cc
index f637981bbf44f013cb4326c9a9024cd4e8175fae..01146bb5e5eb6d7ab22fab1f0513e0eebb83b2f1 100644
--- a/remoting/host/security_key/security_key_extension_session.cc
+++ b/remoting/host/security_key/security_key_extension_session.cc
@@ -11,6 +11,7 @@
 #include "base/macros.h"
 #include "base/single_thread_task_runner.h"
 #include "base/values.h"
+#include "remoting/base/constants.h"
 #include "remoting/base/logging.h"
 #include "remoting/host/client_session_details.h"
 #include "remoting/host/security_key/security_key_auth_handler.h"
@@ -19,9 +20,6 @@
 
 namespace {
 
-// Used as the type attribute of all Security Key protocol::ExtensionMessages.
-const char kExtensionMessageType[] = "gnubby-auth";
-
 // SecurityKey extension message data members.
 const char kConnectionId[] = "connectionId";
 const char kControlMessage[] = "control";
@@ -87,7 +85,7 @@ bool SecurityKeyExtensionSession::OnExtensionMessage(
     const protocol::ExtensionMessage& message) {
   DCHECK(thread_checker_.CalledOnValidThread());
 
-  if (message.type() != kExtensionMessageType) {
+  if (message.type() != kSecurityKeyExtensionMessageType) {
     return false;
   }
 
@@ -195,7 +193,7 @@ void SecurityKeyExtensionSession::SendMessageToClient(
   CHECK(base::JSONWriter::Write(request, &request_json));
 
   protocol::ExtensionMessage message;
-  message.set_type(kExtensionMessageType);
+  message.set_type(kSecurityKeyExtensionMessageType);
   message.set_data(request_json);
 
   client_stub_->DeliverHostMessage(message);