Merge "Clear cookies and webview state for new purchase requests" into udc-qpr-dev

import android.text.TextUtils;

import android.util.Log;

import android.view.KeyEvent;

import android.webkit.CookieManager;

import android.webkit.WebView;

import com.android.phone.slice.SlicePurchaseController;

        // Create WebView

        mWebView = new WebView(this);

        // Clear any cookies and state that might be saved from previous sessions

        CookieManager.getInstance().removeAllCookies(null);

        CookieManager.getInstance().flush();

        mWebView.clearCache(true);

        mWebView.clearHistory();

        // Enable JavaScript for the carrier purchase website to send results back to

        //  the slice purchase application.

        mWebView.getSettings().setJavaScriptEnabled(true);