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

sync/internal_api/test/test_user_share.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 "sync/internal_api/public/test/test_user_share.h"
 
 #include "base/compiler_specific.h"
 #include "sync/syncable/directory.h"
 #include "sync/test/engine/test_directory_setter_upper.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace syncer {
 
 TestUserShare::TestUserShare() : dir_maker_(new TestDirectorySetterUpper()) {}
 
 TestUserShare::~TestUserShare() {
   if (user_share_.get())
     ADD_FAILURE() << "Should have called TestUserShare::TearDown()";
 }
 
 void TestUserShare::SetUp() {
-  user_share_.reset(new syncer::UserShare());
+  user_share_.reset(new UserShare());
   dir_maker_->SetUp();
 
   // The pointer is owned by dir_maker_, we should not be storing it in a
   // scoped_ptr.  We must be careful to ensure the scoped_ptr never deletes it.
   user_share_->directory.reset(dir_maker_->directory());
 }
 
 void TestUserShare::TearDown() {
   // Ensure the scoped_ptr doesn't delete the memory we don't own.
   ignore_result(user_share_->directory.release());
 
   user_share_.reset();
   dir_maker_->TearDown();
 }
 
-syncer::UserShare* TestUserShare::user_share() {
+UserShare* TestUserShare::user_share() {
   return user_share_.get();
 }
 
 }  // namespace syncer