Add the signature checking for WebView plugins. The

    private ArrayList<PackageInfo> mPackageInfoCache;

    // Only plugin matches one of the signatures in the list can be loaded

    // inside the WebView process

    private static final String SIGNATURE_1 = "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";

    private static final String SIGNATURE_2 = "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";

    private static final Signature[] SIGNATURES = new Signature[] {

        new Signature(SIGNATURE_1), new Signature(SIGNATURE_2)

    };

    private PluginManager(Context context) {

        mContext = context;

        mPackageInfoCache = new ArrayList<PackageInfo>();

                }

                boolean signatureMatch = false;

                for (Signature signature : signatures) {

                    // TODO: check signature against Google provided one

                    for (int i = 0; i < SIGNATURES.length; i++) {

                        if (SIGNATURES[i].equals(signature)) {

                            signatureMatch = true;

                            break;

                        }

                    }

                }

                if (!signatureMatch) {

                    continue;

                }