kiosk: Add kiosk.required_platform_version manifest key

extensions/common/manifest_constants.cc

Index: extensions/common/manifest_constants.cc
diff --git a/extensions/common/manifest_constants.cc b/extensions/common/manifest_constants.cc
index c6189306055e7029b0fd69270fbb21c9dbfaeb55..d9481702167bdb1bbd2f782dc6860c263e16764a 100644
--- a/extensions/common/manifest_constants.cc
+++ b/extensions/common/manifest_constants.cc
@@ -66,9 +66,11 @@ const char kIsolation[] = "app.isolation";
 const char kJs[] = "js";
 const char kKey[] = "key";
 const char kKeycode[] = "keyCode";
+const char kKiosk[] = "kiosk";
 const char kKioskEnabled[] = "kiosk_enabled";
 const char kKioskOnly[] = "kiosk_only";
 const char kKioskMode[] = "kiosk_mode";
+const char kKioskRequiredPlatformVersion[] = "kiosk.required_platform_version";
 const char kKioskSecondaryApps[] = "kiosk_secondary_apps";
 const char kLanguage[] = "language";
 const char kLaunch[] = "app.launch";
@@ -466,6 +468,8 @@ const char kInvalidKioskOnly[] =
     "Invalid value for 'kiosk_only'.";
 const char kInvalidKioskOnlyButNotEnabled[] =
     "The 'kiosk_only' key is set, but 'kiosk_enabled' is not set.";
+const char kInvalidKioskRequiredPlatformVersion[] =
+    "Invalid value for 'kiosk.required_platform_version'";
 const char kInvalidKioskSecondaryApps[] =
     "Invalid value for 'kiosk_secondary_apps'";
 const char kInvalidKioskSecondaryAppsBadAppEntry[] =