ChromeBrowserSyncAdapter.java 文件源码

private BrowserParts getBrowserParts(final Context context,
        final String account, final PendingInvalidation invalidation,
        final SyncResult syncResult, final Semaphore semaphore) {
    return new EmptyBrowserParts() {
        @Override
        public void finishNativeInitialization() {
            // Startup succeeded, so we can notify the invalidation.
            notifyInvalidation(invalidation.mObjectSource, invalidation.mObjectId,
                    invalidation.mVersion, invalidation.mPayload);
            semaphore.release();
        }

        @Override
        public void onStartupFailure() {
            // The startup failed, so we defer the invalidation.
            DelayedInvalidationsController.getInstance().addPendingInvalidation(
                    context, account, invalidation);
            // Using numIoExceptions so Android will treat this as a soft error.
            syncResult.stats.numIoExceptions++;
            semaphore.release();
        }
    };
}