[System-Keyboard-Lock] Forward navigator functions to RenderFrameHost

third_party/WebKit/public/platform/modules/keyboard_lock/keyboard_lock.mojom

Index: third_party/WebKit/public/platform/modules/keyboard_lock/keyboard_lock.mojom
diff --git a/third_party/WebKit/public/platform/modules/keyboard_lock/keyboard_lock.mojom b/third_party/WebKit/public/platform/modules/keyboard_lock/keyboard_lock.mojom
new file mode 100644
index 0000000000000000000000000000000000000000..97daf5437df56a29d515bc3b0caa7bdc581be04d
--- /dev/null
+++ b/third_party/WebKit/public/platform/modules/keyboard_lock/keyboard_lock.mojom
@@ -0,0 +1,12 @@
+// 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.
+
+module blink.mojom;
+
+interface KeyboardLockService {

[whywhat, 2017/04/12 16:02:13]

nit: add some comments to the interface and methods about the params and
returns?

[Hzj_jie, 2017/04/13 00:38:54]

Updated. But in Chrome, we never reject the request unless the web page is out
of security context. So I cannot give a very clear description about the
potential strings for the |reason| parameter.

+  RequestKeyLock(array<string> key_codes)
+    => (bool allowed_by_user_or_browser, string reason);
+
+  CancelKeyLock() => ();
+};