Bug 879861 - Part 6: Adding dom.secureelement.enabled pref. r=smaug

dom/webidl/SecureElement.webidl

@@ -34,7 +34,8 @@ dictionary SECommand {
                                  // response data or -1 if none is expected
 };
 
-[CheckPermissions="secureelement-manage",
+[Pref="dom.secureelement.enabled",
+ CheckPermissions="secureelement-manage",
  AvailableIn="CertifiedApps",
  JSImplementation="@mozilla.org/secureelement/reader;1"]
 interface SEReader {
@@ -62,7 +63,8 @@ interface SEReader {
   Promise<void> closeAll();
 };
 
-[CheckPermissions="secureelement-manage",
+[Pref="dom.secureelement.enabled",
+ CheckPermissions="secureelement-manage",
  AvailableIn="CertifiedApps",
  JSImplementation="@mozilla.org/secureelement/session;1"]
 interface SESession {
@@ -97,7 +99,8 @@ interface SESession {
   Promise<void> closeAll();
 };
 
-[CheckPermissions="secureelement-manage",
+[Pref="dom.secureelement.enabled",
+ CheckPermissions="secureelement-manage",
  AvailableIn="CertifiedApps",
  JSImplementation="@mozilla.org/secureelement/channel;1"]
 interface SEChannel {
@@ -136,7 +139,8 @@ interface SEChannel {
   Promise<void> close();
 };
 
-[CheckPermissions="secureelement-manage",
+[Pref="dom.secureelement.enabled",
+ CheckPermissions="secureelement-manage",
  AvailableIn="CertifiedApps",
  JSImplementation="@mozilla.org/secureelement/response;1"]
 interface SEResponse {

dom/webidl/SecureElementManager.webidl

@@ -4,7 +4,8 @@
 
  /* Copyright © 2014 Deutsche Telekom, Inc. */
 
-[CheckPermissions="secureelement-manage",
+[Pref="dom.secureelement.enabled",
+ CheckPermissions="secureelement-manage",
  AvailableIn="CertifiedApps",
  JSImplementation="@mozilla.org/secureelement/manager;1",
  NavigatorProperty="seManager",

modules/libpref/init/all.js

@@ -4554,3 +4554,8 @@ pref("reader.has_used_toolbar", false);
 // loaded without sandboxing even if this pref is changed.
 pref("media.gmp.insecure.allow", false);
 #endif
+
+// Secure Element API
+#ifdef MOZ_SECUREELEMENT
+pref("dom.secureelement.enabled", false);
+#endif