Revert 111479 - chrome: dbus: support asynchronous method replies

chrome/browser/chromeos/dbus/proxy_resolution_service_provider.h

Index: chrome/browser/chromeos/dbus/proxy_resolution_service_provider.h
===================================================================
--- chrome/browser/chromeos/dbus/proxy_resolution_service_provider.h	(revision 111486)
+++ chrome/browser/chromeos/dbus/proxy_resolution_service_provider.h	(working copy)
@@ -15,9 +15,9 @@
 #include "base/synchronization/lock.h"
 #include "base/threading/platform_thread.h"
 #include "chrome/browser/chromeos/dbus/cros_dbus_service.h"
-#include "dbus/exported_object.h"
 
 namespace dbus {
+class ExportedObject;
 class MethodCall;
 class Response;
 }
@@ -104,15 +104,13 @@
   // Callback to be invoked when ChromeOS clients send network proxy
   // resolution requests to the service running in chrome executable.
   // Called on UI thread from dbus request.
-  void ResolveProxyHandler(dbus::MethodCall* method_call,
-      dbus::ExportedObject::ResponseSender response_sender);
+  dbus::Response* ResolveProxyHandler(dbus::MethodCall* method_call);
 
   // Calls ResolveProxyHandler() if weak_ptr is not NULL. Used to ensure a
   // safe shutdown.
-  static void CallResolveProxyHandler(
+  static dbus::Response* CallResolveProxyHandler(
       base::WeakPtr<ProxyResolutionServiceProvider> weak_ptr,
-      dbus::MethodCall* method_call,
-      dbus::ExportedObject::ResponseSender response_sender);
+      dbus::MethodCall* method_call);
 
   // Returns true if the current thread is on the origin thread.
   bool OnOriginThread();