Bug 1215147 - Enable VR API's on FF for Android by default. r=snorp, r=vlad, r=bz

dom/tests/mochitest/general/test_interfaces.html

@@ -519,7 +519,7 @@ var interfaceNamesInGlobalScope =
 // IMPORTANT: Do not change this list without review from a DOM peer!
     {name: "HDMIInputPort", b2g: true, permission: ["inputport"]},
 // IMPORTANT: Do not change this list without review from a DOM peer!
-    {name: "HMDVRDevice", disabled: true},
+    {name: "HMDVRDevice", android: true, release: false},
 // IMPORTANT: Do not change this list without review from a DOM peer!
     "HTMLAllCollection",
 // IMPORTANT: Do not change this list without review from a DOM peer!
@@ -947,7 +947,7 @@ var interfaceNamesInGlobalScope =
 // IMPORTANT: Do not change this list without review from a DOM peer!
     {name: "PopupBoxObject", xbl: true},
 // IMPORTANT: Do not change this list without review from a DOM peer!
-    {name: "PositionSensorVRDevice", disabled: true},
+    {name: "PositionSensorVRDevice", android: true, release: false},
 // IMPORTANT: Do not change this list without review from a DOM peer!
     {name: "PresentationDeviceInfoManager",
      disabled: true,
@@ -1399,13 +1399,15 @@ var interfaceNamesInGlobalScope =
 // IMPORTANT: Do not change this list without review from a DOM peer!
     "VideoStreamTrack",
 // IMPORTANT: Do not change this list without review from a DOM peer!
-    {name: "VRDevice", disabled: true},
+    {name: "VRDevice", android: true, release: false},
 // IMPORTANT: Do not change this list without review from a DOM peer!
-    {name: "VRPositionState", disabled: true},
+    {name: "VRPositionState", android: true, release: false},
 // IMPORTANT: Do not change this list without review from a DOM peer!
-    {name: "VRFieldOfView", disabled: true},
+    {name: "VREyeParameters", android: true, release: false},
 // IMPORTANT: Do not change this list without review from a DOM peer!
-    {name: "VRFieldOfViewReadOnly", disabled: true},
+    {name: "VRFieldOfView", android: true, release: false},
+// IMPORTANT: Do not change this list without review from a DOM peer!
+    {name: "VRFieldOfViewReadOnly", android: true, release: false},
 // IMPORTANT: Do not change this list without review from a DOM peer!
     "VTTCue",
 // IMPORTANT: Do not change this list without review from a DOM peer!

mobile/android/app/mobile.js

@@ -935,6 +935,11 @@ pref("consoleservice.logcat", true);
 // Enable Cardboard VR on mobile, assuming VR at all is enabled
 pref("dom.vr.cardboard.enabled", true);
 
+#ifndef RELEASE_BUILD
+// Enable VR on mobile, making it enable by default.
+pref("dom.vr.enabled", true);
+#endif
+
 pref("browser.tabs.showAudioPlayingIcon", true);
 
 // Enable service workers and fetch interception on non-release Fennec