Merge "Clear calling identity in replaceContentOnDisplay" into main

            throw new SecurityException("Requires ACCESS_SURFACE_FLINGER permission");

        }

        DisplayContent dc;

        final long origId = Binder.clearCallingIdentity();

        try {

            synchronized (mGlobalLock) {

            dc = mRoot.getDisplayContentOrCreate(displayId);

                DisplayContent dc = mRoot.getDisplayContentOrCreate(displayId);

                if (dc == null) {

                    return false;

                }

                dc.replaceContent(sc);

                return true;

            }

        } finally {

            Binder.restoreCallingIdentity(origId);

        }

    }

}