Add browser test for initial languages.

chromeos/system/fake_statistics_provider.h

+// Copyright 2014 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 CHROMEOS_SYSTEM_FAKE_STATISTICS_PROVIDER_H_
+#define CHROMEOS_SYSTEM_FAKE_STATISTICS_PROVIDER_H_
+
+#include "base/basictypes.h"
+#include "chromeos/system/statistics_provider.h"
+
+namespace chromeos {
+namespace system {
+
+// Custom StatisticsProvider that will return each set of region settings.
+class FakeStatisticsProvider : public StatisticsProvider {
+ public:
+  virtual ~FakeStatisticsProvider() {}

[Dmitry Polukhin, 2014/10/03 07:49:52]

Missing OVERRIDE.

[Alexander Alekseev, 2014/10/03 12:59:17]

Done.

+
+  void set_locale(const std::string& locale) { initial_locale_ = locale; }
+
+  void set_keyboard_layout(const std::string& keyboard_layout) {
+    keyboard_layout_ = keyboard_layout;
+  }
+
+ private:
+  // StatisticsProvider overrides.
+  virtual void StartLoadingMachineStatistics(
+      const scoped_refptr<base::TaskRunner>& file_task_runner,
+      bool load_oem_manifest) OVERRIDE;
+
+  // Populates the named machine statistic for initial_locale and
+  // keyboard_layout only.
+  virtual bool GetMachineStatistic(const std::string& name,
+                                   std::string* result) OVERRIDE;
+
+  virtual bool GetMachineFlag(const std::string& name, bool* result) OVERRIDE;
+  virtual void Shutdown() OVERRIDE;
+
+  std::string initial_locale_;
+  std::string keyboard_layout_;
+};
+
+}  // namespace system
+}  // namespace chromeos
+
+#endif  // CHROMEOS_SYSTEM_FAKE_STATISTICS_PROVIDER_H_