Enable DOM storage API for CaptivePortalLoginActivity

The HTML page in "https://www.personal.com.py/portal/redirect.html"
contains the below lines.
localStorage.clear();
var hashParams = getUrlParams();
The value of localStorage is null hence the white page is being displayed.

Bug: 122999476
Test: Manual

Change-Id: I15195924a727d20ab848df184ede6e2831bdc01b
Signed-off-by: Sehee Park <sehee32.park@samsung.com>

packages/CaptivePortalLogin/src/com/android/captiveportallogin/CaptivePortalLoginActivity.java

@@ -175,6 +175,7 @@ public class CaptivePortalLoginActivity extends Activity {
         webSettings.setSupportZoom(true);
         webSettings.setBuiltInZoomControls(true);
         webSettings.setDisplayZoomControls(false);
+        webSettings.setDomStorageEnabled(true);
         mWebViewClient = new MyWebViewClient();
         webview.setWebViewClient(mWebViewClient);
         webview.setWebChromeClient(new MyWebChromeClient());

packages/CarrierDefaultApp/src/com/android/carrierdefaultapp/CaptivePortalLoginActivity.java

@@ -106,6 +106,7 @@ public class CaptivePortalLoginActivity extends Activity {
         webSettings.setLoadWithOverviewMode(true);
         webSettings.setSupportZoom(true);
         webSettings.setBuiltInZoomControls(true);
+        webSettings.setDomStorageEnabled(true);
         mWebViewClient = new MyWebViewClient();
         mWebView.setWebViewClient(mWebViewClient);
         mWebView.setWebChromeClient(new MyWebChromeClient());