Bug 1346926 - Make PVRManager::SetHaveEventListener async r=kanru

- There appears to be no issues with simply changing
  SetHaveEventListener from sync to async.

MozReview-Commit-ID: 3LKgDx9AZnm

--HG--
extra : rebase_source : 6c706f592f71a8c967a58f6906861fcff2525ebf

gfx/vr/ipc/PVRManager.ipdl

@@ -50,7 +50,7 @@ parent:
   async ResetSensor(uint32_t aDisplayID);
 
   sync GetSensorState(uint32_t aDisplayID) returns(VRHMDSensorState aState);
-  sync SetHaveEventListener(bool aHaveEventListener);
+  async SetHaveEventListener(bool aHaveEventListener);
 
   async ControllerListenerAdded();
   async ControllerListenerRemoved();

ipc/ipdl/sync-messages.ini

@@ -951,8 +951,6 @@ description =
 description =
 [PVRManager::GetSensorState]
 description =
-[PVRManager::SetHaveEventListener]
-description =
 [PHal::GetCurrentBatteryInformation]
 description =
 [PHal::GetCurrentNetworkInformation]