[chromedriver] Allow commands to be async.

chrome/test/chromedriver/fake_session_accessor.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 "chrome/test/chromedriver/fake_session_accessor.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-FakeSessionAccessor::FakeSessionAccessor(Session* session)
-    : session_(session),
-      is_accessed_(false),
-      is_session_deleted_(false) {}
-
-Session* FakeSessionAccessor::Access(
-    scoped_ptr<base::AutoLock>* lock) {
-  is_accessed_ = true;
-  return session_;
-}
-
-bool FakeSessionAccessor::IsSessionDeleted() const {
-  return is_session_deleted_;
-}
-
-void FakeSessionAccessor::DeleteSession() {
-  ASSERT_TRUE(is_accessed_);
-  is_session_deleted_ = true;
-}
-
-FakeSessionAccessor::~FakeSessionAccessor() {}