Backed out changeset 7a6e7570df3e (bug 1337056)

#include "nsINavHistoryService.h"

#include "nsToolkitCompsCID.h"

#include "nsIObserverService.h"

#include "nsPrintfCString.h"

static nsPermissionManager *gPermissionManager = nullptr;

    return nullptr;

  }

#ifdef DEBUG

  // Creating a PermissionsKey to look up a permission if we haven't had those keys

  // synced down yet is problematic, so we do a check here and emit an assertion if

  // we see it happening.

  if (XRE_IsContentProcess()) {

    nsAutoCString permissionKey;

    GetKeyForPrincipal(aPrincipal, permissionKey);

    // NOTE: Theoretically an addon could ask for permissions which the process

    // wouldn't have access to, and we wouldn't want to crash the process in

    // this case, but our chrome code should never do this. Using NS_ASSERTION

    // here so that we can test fetching unavaliable permissions in tests.

    NS_ASSERTION(gPermissionManager->mAvailablePermissionKeys.Contains(permissionKey),

                 nsPrintfCString("This content process hasn't received the "

                                 "permissions for %s yet", permissionKey.get()).get());

  }

#endif

  return new PermissionKey(origin);

}