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

third_party/WebKit/Source/modules/keyboard_lock/NavigatorKeyboardLock.idl

Index: third_party/WebKit/Source/modules/keyboard_lock/NavigatorKeyboardLock.idl
diff --git a/third_party/WebKit/Source/modules/keyboard_lock/NavigatorKeyboardLock.idl b/third_party/WebKit/Source/modules/keyboard_lock/NavigatorKeyboardLock.idl
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index 0000000000000000000000000000000000000000..e72930d02e17ec67a1ee250c7e9c443a046e6128
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+++ b/third_party/WebKit/Source/modules/keyboard_lock/NavigatorKeyboardLock.idl
@@ -0,0 +1,23 @@
+// 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.
+
+// https://garykac.github.io/system-keyboard-lock/.
+// TODO(zijiehe, garykac): Update the spec to match the implementation.
+// 1. "System" should be removed from both the function names: these functions
+//    are not for system keys or key combinations only.
+//    See https://github.com/garykac/system-keyboard-lock/issues/6
+// 2. Returns Promise<void> from requestKeyLock() function: user agents can
+//    decline the request, and web page can get a notification once the
+//    requested keys should be received.
+//    See https://github.com/garykac/system-keyboard-lock/issues/7
+// 3. The parameter of requestKeyLock() should be
+//        optional sequence<DOMString> keyCodes = []
+//    See https://github.com/garykac/system-keyboard-lock/issues/21
+// 4. cancelKeyLock() function is implicitly called whenever the unloading
+//    document cleanup steps run with a document.
+//    See https://github.com/garykac/system-keyboard-lock/issues/22
+partial interface Navigator {
+    [SecureContext, RuntimeEnabled=KeyboardLock, CallWith=ScriptState] Promise<void> requestKeyLock(optional sequence<DOMString> keyCodes = []);
+    [SecureContext, RuntimeEnabled=KeyboardLock] void cancelKeyLock();
+};