[Sync] Remove unneeded 'using syncer::' lines and 'syncer::' scopings

sync/notifier/chrome_invalidation_client_unittest.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 <string>
 
 #include "base/message_loop.h"
 #include "google/cacheinvalidation/include/invalidation-client.h"
 #include "google/cacheinvalidation/include/types.h"
 #include "google/cacheinvalidation/v2/types.pb.h"
@@ skipping 61 matching lines @@
       : fake_push_client_(new notifier::FakePushClient()),
         client_(scoped_ptr<notifier::PushClient>(fake_push_client_)),
         kBookmarksId_(kChromeSyncSourceId, "BOOKMARK"),
         kPreferencesId_(kChromeSyncSourceId, "PREFERENCE"),
         kExtensionsId_(kChromeSyncSourceId, "EXTENSION"),
         kAppsId_(kChromeSyncSourceId, "APP") {}
 
   virtual void SetUp() {
     client_.Start(kClientId, kClientInfo, kState,
                   InvalidationVersionMap(),
-                  syncer::MakeWeakHandle(
-                      mock_invalidation_state_tracker_.AsWeakPtr()),
+                  MakeWeakHandle(mock_invalidation_state_tracker_.AsWeakPtr()),
                   &mock_listener_);
   }
 
   virtual void TearDown() {
     // client_.Stop() stops the invalidation scheduler, which deletes any
     // pending tasks without running them.  Some tasks "run and delete" another
     // task, so they must be run in order to avoid leaking the inner task.
     // client_.Stop() does not schedule any tasks, so it's both necessary and
     // sufficient to drain the task queue before calling it.
     message_loop_.RunAllPending();
@@ skipping 263 matching lines @@
           invalidation::ErrorContext()));
   fake_push_client_->DisableNotifications(
       notifier::TRANSIENT_NOTIFICATION_ERROR);
   fake_push_client_->DisableNotifications(
       notifier::NOTIFICATION_CREDENTIALS_REJECTED);
   fake_push_client_->EnableNotifications();
   client_.Ready(NULL);
 }
 
 }  // namespace syncer