Do not mark CameraEnabled proto before it is removed from ChromeOS.

chrome/browser/policy/proto/chromeos/chrome_device_policy.proto

 // 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.
 
 syntax = "proto2";
 
 option optimize_for = LITE_RUNTIME;
 
 package enterprise_management;
 
@@ skipping 46 matching lines @@
 }
 
 message DeviceProxySettingsProto {
   // One of "direct", "auto_detect", "pac_script", "fixed_servers", "system"
   optional string proxy_mode = 1;
   optional string proxy_server = 2;
   optional string proxy_pac_url = 3;
   optional string proxy_bypass_list = 4;
 }
 
-// This was added to the protobuf definition but never implemented. Chrome can
-// meanwhile lock down access to media devices via a user policy, so the
-// device-level setting is deprecated for good.
+// This is used by chromeos, make sure to do cleanup there before marking it as
+// obsolette.
 message CameraEnabledProto {
   optional bool camera_enabled = 1;
 }
 
 message MetricsEnabledProto {
   optional bool metrics_enabled = 1;
 }
 
 message ReleaseChannelProto {
   // One of "stable-channel", "beta-channel", or "dev-channel"
@@ skipping 458 matching lines @@
   // Configures strategy for automatic clean-up process that is run when device
   // runs out of free disk space. One of "remove-lru", "remove-lru-if-dormant".
   optional string clean_up_strategy = 1;
 }
 
 message ChromeDeviceSettingsProto {
   optional DevicePolicyRefreshRateProto device_policy_refresh_rate = 1;
   optional UserWhitelistProto user_whitelist = 2;
   optional GuestModeEnabledProto guest_mode_enabled = 3;
   optional DeviceProxySettingsProto device_proxy_settings = 4;
-  optional CameraEnabledProto OBSOLETE_camera_enabled = 5 [deprecated = true];
+  optional CameraEnabledProto camera_enabled = 5;
   optional ShowUserNamesOnSigninProto show_user_names = 6;
   optional DataRoamingEnabledProto data_roaming_enabled = 7;
   optional AllowNewUsersProto allow_new_users = 8;
   optional MetricsEnabledProto metrics_enabled = 9;
   optional ReleaseChannelProto release_channel = 10;
   optional DeviceOpenNetworkConfigurationProto open_network_configuration = 11;
   optional DeviceReportingProto device_reporting = 12;
   optional EphemeralUsersEnabledProto ephemeral_users_enabled = 13;
   optional AppPackProto app_pack = 14;
   optional ForcedLogoutTimeoutsProto forced_logout_timeouts = 15;
   optional ScreenSaverProto login_screen_saver = 16;
   optional AutoUpdateSettingsProto auto_update_settings = 17;
   optional StartUpUrlsProto start_up_urls = 18;
   optional PinnedAppsProto pinned_apps = 19;
   optional SystemTimezoneProto system_timezone = 20;
   optional DeviceLocalAccountsProto device_local_accounts = 21;
   optional AllowRedeemChromeOsRegistrationOffersProto allow_redeem_offers = 22;
   optional StartUpFlagsProto start_up_flags = 23;
   optional UptimeLimitProto uptime_limit = 24;
   optional VariationsParameterProto variations_parameter = 25;
   optional AttestationSettingsProto attestation_settings = 26;
   optional AccessibilitySettingsProto accessibility_settings = 27;
   optional SupervisedUsersSettingsProto supervised_users_settings = 28;
   optional LoginScreenPowerManagementProto login_screen_power_management = 29;
   optional SystemUse24HourClockProto use_24hour_clock = 30;
   optional AutoCleanupSettigsProto auto_clean_up_settings = 31;
 }