Revert 68944 - Revert "Add named testing interface."

chrome/common/automation_constants.cc

Index: chrome/common/automation_constants.cc
diff --git a/chrome/common/automation_constants.cc b/chrome/common/automation_constants.cc
index c2538714076aaefee05ccdbc6e084218d84c7071..9480254175ace3711c3a9666687518cc2f2fa132 100644
--- a/chrome/common/automation_constants.cc
+++ b/chrome/common/automation_constants.cc
@@ -5,6 +5,7 @@
 #include "chrome/common/automation_constants.h"
 
 namespace automation {
+
 // JSON value labels for proxy settings that are passed in via
 // AutomationMsg_SetProxyConfig.
 const char kJSONProxyAutoconfig[] = "proxy.autoconfig";
@@ -12,4 +13,10 @@ const char kJSONProxyNoProxy[] = "proxy.no_proxy";
 const char kJSONProxyPacUrl[] = "proxy.pac_url";
 const char kJSONProxyBypassList[] = "proxy.bypass_list";
 const char kJSONProxyServer[] = "proxy.server";
-}
+
+// Named testing interface is used when you want to connect an
+// AutomationProxy to an already-running browser instance.
+const char kNamedInterfacePrefix[] = "NamedTestingInterface:";
+
+}  // namespace automation
+