Extract a delegate interface from c/b/input_method to permit decoupling from c/b.

chrome/browser/chromeos/input_method/mock_input_method_delegate.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/browser/chromeos/input_method/mock_input_method_delegate.h"
+
+namespace chromeos {
+namespace input_method {
+
+MockInputMethodDelegate::MockInputMethodDelegate()
+    : active_locale_("en"),
+      update_system_input_method_count_(0),
+      update_user_input_method_count_(0) {
+}
+
+MockInputMethodDelegate::~MockInputMethodDelegate() {
+}
+
+void MockInputMethodDelegate::SetSystemInputMethod(
+    const std::string& input_method) {
+  ++update_system_input_method_count_;
+  system_input_method_ = input_method;
+}
+
+void MockInputMethodDelegate::SetUserInputMethod(
+    const std::string& input_method) {
+  ++update_user_input_method_count_;
+  user_input_method_ = input_method;
+}
+
+std::string MockInputMethodDelegate::GetHardwareKeyboardLayout() const {
+  return hardware_keyboard_layout_;
+}
+
+std::string MockInputMethodDelegate::GetActiveLocale() const {
+  return active_locale_;
+}
+
+}  // namespace input_method
+}  // namespace chromeos