Correctly integrate StoragePartition into TestingProfile.

chrome/test/base/testing_io_thread_state.h

+// Copyright (c) 2013 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.
+
+#ifndef CHROME_TEST_BASE_TESTING_IO_THREAD_STATE_H_
+#define CHROME_TEST_BASE_TESTING_IO_THREAD_STATE_H_
+
+#include "base/callback_forward.h"
+#include "base/memory/scoped_ptr.h"
+
+class IOThread;
+
+namespace chrome {
+
+// Convenience class for creating an IOThread object in unittests.
+// Usual usage is to create one of these in the test fixture, after the
+// BrowserThreadBundle and TestingBrowserProcess have been initialized.
+//
+// If code requires the use of io thread globals, those can be set by
+// accessing io_thread_state()->globals() on the IO thread during test setup.
+class TestingIOThreadState {
+ public:
+  TestingIOThreadState();
+  ~TestingIOThreadState();
+  IOThread* io_thread_state() { return io_thread_state_.get(); }
+
+ private:
+  void Initialize(const base::Closure& done);
+  void Shutdown(const base::Closure& done);
+
+  scoped_ptr<IOThread> io_thread_state_;
+
+  DISALLOW_COPY_AND_ASSIGN(TestingIOThreadState);
+};
+
+}  // namespace chrome
+
+#endif  // CHROME_TEST_BASE_TESTING_IO_THREAD_STATE_H_