Merge "Update the error for WebView thread violations to make clear that it's not fatal"

    private static void checkThread() {

        if (Looper.myLooper() != Looper.getMainLooper()) {

            RuntimeException exception = new RuntimeException(

                    "A WebView method was called on thread '" +

            Throwable throwable = new Throwable(

                    "Warning: A WebView method was called on thread '" +

                    Thread.currentThread().getName() + "'. " +

                    "All WebView methods must be called on the UI thread. " +

                    "Future versions of WebView may not support use on other threads.");

            Log.e(LOGTAG, Log.getStackTraceString(exception));

            StrictMode.onWebViewMethodCalledOnWrongThread(exception);

            Log.w(LOGTAG, Log.getStackTraceString(throwable));

            StrictMode.onWebViewMethodCalledOnWrongThread(throwable);

        }

    }