Keyboard Lock Host implementation

components/keyboard_lock/sync_key_hook.cc

Index: components/keyboard_lock/sync_key_hook.cc
diff --git a/components/keyboard_lock/sync_key_hook.cc b/components/keyboard_lock/sync_key_hook.cc
new file mode 100644
index 0000000000000000000000000000000000000000..fc332fb34afbeabaa2758684791896d1d0f8ca6f
--- /dev/null
+++ b/components/keyboard_lock/sync_key_hook.cc
@@ -0,0 +1,28 @@
+// 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.
+
+#include "components/keyboard_lock/sync_key_hook.h"
+
+namespace keyboard_lock {
+
+SyncKeyHook::SyncKeyHook() = default;
+SyncKeyHook::~SyncKeyHook() = default;
+
+void SyncKeyHook::RegisterKey(const std::vector<ui::KeyboardCode>& codes,
+                              base::Callback<void(bool)> on_result) {
+  bool result = RegisterKey(codes);
+  if (on_result) {
+    on_result.Run(result);
+  }
+}
+
+void SyncKeyHook::UnregisterKey(const std::vector<ui::KeyboardCode>& codes,
+                                base::Callback<void(bool)> on_result) {
+  bool result = UnregisterKey(codes);
+  if (on_result) {
+    on_result.Run(result);
+  }
+}
+
+}  // namespace keyboard_lock