chromeos: Remove the last IME methods from ash::SystemTrayDelegate

ash/system/ime/ime_util.h

+// Copyright 2017 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 ASH_SYSTEM_IME_IME_UTIL_H_
+#define ASH_SYSTEM_IME_IME_UTIL_H_
+
+#include <vector>
+
+#include "ash/ash_export.h"
+#include "base/macros.h"
+
+namespace ash {
+
+struct IMEInfo;
+struct IMEPropertyInfo;
+
+namespace ime_util {
+
+// Returns the currently selected IME.
+IMEInfo GetCurrentIME();
+
+// Returns a list of availble IMEs.
+std::vector<IMEInfo> GetAvailableIMEList();
+
+// Returns a list of properties for the currently selected IME.
+std::vector<IMEPropertyInfo> GetCurrentIMEProperties();
+
+// Sets the return value of GetCurrentIME().
+class ASH_EXPORT ScopedCurrentImeForTesting {
+ public:
+  explicit ScopedCurrentImeForTesting(IMEInfo* info);
+  ~ScopedCurrentImeForTesting();
+
+ private:
+  IMEInfo* const last_info_;
+
+  DISALLOW_COPY_AND_ASSIGN(ScopedCurrentImeForTesting);
+};
+
+// Sets the return value of GetAvailableIMEList().
+class ASH_EXPORT ScopedAvailableImeListForTesting {
+ public:
+  explicit ScopedAvailableImeListForTesting(std::vector<IMEInfo>* list);
+  ~ScopedAvailableImeListForTesting();
+
+ private:
+  std::vector<IMEInfo>* const last_list_;
+
+  DISALLOW_COPY_AND_ASSIGN(ScopedAvailableImeListForTesting);
+};
+
+}  // namespace ime_util
+}  // namespace ash
+
+#endif  // ASH_SYSTEM_IME_IME_UTIL_H_