DBus: Reverse error suppression logic from r198328.

dbus/bus.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "dbus/bus.h"
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/message_loop.h"
 #include "base/message_loop_proxy.h"
@@ skipping 868 matching lines @@
       FROM_HERE,
       base::Bind(&Bus::GetServiceOwnerInternal, this, service_name, callback));
 }
 
 void Bus::GetServiceOwnerInternal(const std::string& service_name,
                                   const GetServiceOwnerCallback& callback) {
   AssertOnDBusThread();
 
   std::string service_owner;
   if (Connect())
-    service_owner = GetServiceOwnerAndBlock(service_name, REPORT_ERRORS);
+    service_owner = GetServiceOwnerAndBlock(service_name, SUPPRESS_ERRORS);
   PostTaskToOriginThread(FROM_HERE, base::Bind(callback, service_owner));
 }
 
 dbus_bool_t Bus::OnAddWatch(DBusWatch* raw_watch) {
   AssertOnDBusThread();
 
   // watch will be deleted when raw_watch is removed in OnRemoveWatch().
   Watch* watch = new Watch(raw_watch);
   if (watch->IsReadyToBeWatched()) {
     watch->StartWatching();
@@ skipping 128 matching lines @@
                              kDisconnectedSignal)) {
     Bus* self = static_cast<Bus*>(data);
     self->AssertOnDBusThread();
     self->OnConnectionDisconnected(connection);
     return DBUS_HANDLER_RESULT_HANDLED;
   }
   return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 }
 
 }  // namespace dbus