Merge "Don't update quota for non-emulated volumes." into rvc-dev am: 29d6a24f

        final String filePath = path.getCanonicalPath();

        final StorageVolume volume = getStorageVolume(path);

        if (volume == null) {

            throw new IllegalStateException("Failed to update quota type for " + filePath);

            Log.w(TAG, "Failed to update quota type for " + filePath);

            return;

        }

        if (!volume.isEmulated()) {

            // We only support quota tracking on emulated filesystems

            return;

        }

        final int userId = volume.getOwner().getIdentifier();