wayland-protocols: Add device_configuration_exists error to zcr_keyboard_configuration_v1 interface.

third_party/wayland-protocols/unstable/keyboard/keyboard-configuration-unstable-v1.xml

 <?xml version="1.0" encoding="UTF-8"?>
 <protocol name="keyboard_configuration_unstable_v1">
 
   <copyright>
     Copyright 2016 The Chromium Authors.
 
     Permission is hereby granted, free of charge, to any person obtaining a
     copy of this software and associated documentation files (the "Software"),
     to deal in the Software without restriction, including without limitation
     the rights to use, copy, modify, merge, publish, distribute, sublicense,
     and/or sell copies of the Software, and to permit persons to whom the
     Software is furnished to do so, subject to the following conditions:
 
     The above copyright notice and this permission notice (including the next
     paragraph) shall be included in all copies or substantial portions of the
     Software.
 
     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
     THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
     DEALINGS IN THE SOFTWARE.
   </copyright>
 
-  <interface name="zcr_keyboard_configuration_v1" version="1">
+  <interface name="zcr_keyboard_configuration_v1" version="2">
     <description summary="extends wl_keyboard with events for device configuration change">
       Allows a wl_keyboard to notify device configuration change events of
       the keyboard to the client.
 
       Warning! The protocol described in this file is experimental and
       backward incompatible changes may be made. Backward compatible changes
       may be added together with the corresponding uinterface version bump.
       Backward incompatible changes are done by bumping the version number in
       the protocol and uinterface names and resetting the interface version.
       Once the protocol is to be declared stable, the 'z' prefix and the
       version number in the protocol and interface names are removed and the
       interface version number is reset.
     </description>
 
+    <enum name="error">
+      <entry name="device_configuration_exists" value="0"
+             summary="the keyboard already has a device configuration object associated"/>
+    </enum>
+
     <request name="get_keyboard_device_configuration">
       <description summary="get keyboard_device_configuration interface for a keyboard">
         Create keyboard_device_configuration object.
         See zcr_keyboard_device_configuration interface for details.
+        If the given wl_keyboard object already has a security object associated,

[reveman, 2016/12/12 11:49:31]

s/security/device configuration/

[yhanada, 2016/12/12 15:42:34]

Done.

+        the keyboard_device_configuration_exists protocol error is raised.
       </description>
       <arg name="id" type="new_id" interface="zcr_keyboard_device_configuration_v1"/>
       <arg name="keyboard" type="object" interface="wl_keyboard"/>
     </request>
   </interface>
 
   <interface name="zcr_keyboard_device_configuration_v1" version="1">
     <description summary="extension of wl_keyboard protocol">
       The zcr_keyboard_device_configuration_v1 interface extends the wl_keyboard
       interface with events to describe device configuration of a keyboard.
@@ skipping 14 matching lines @@
         Notification that the user is switching to new keyboard type.
 
         If this event is not received, the cleint has to assume a physical
         keyboard is in use.
       </description>
       <arg name="type" type="uint" enum="keyboard_type" summary="new device type"/>
     </event>
   </interface>
 
 </protocol>