Quiet some logs in private browsing mode.

Also, always direct load URLs in the WebView
when in private browsing mode so external apps
can't intercept the URLs you visit and they
aren't logged by the ActivityManager.

Change-Id: I727a94220d35c242fa0a0cd7f52d483c1a935cd0
diff --git a/src/com/android/browser/BrowserActivity.java b/src/com/android/browser/BrowserActivity.java
index d69140f..7890485 100644
--- a/src/com/android/browser/BrowserActivity.java
+++ b/src/com/android/browser/BrowserActivity.java
@@ -2676,6 +2676,12 @@
     }
 
     boolean shouldOverrideUrlLoading(WebView view, String url) {
+        if (view.isPrivateBrowsingEnabled()) {
+            // Don't allow urls to leave the browser app when in private browsing mode
+            loadUrl(view, url);
+            return true;
+        }
+
         if (url.startsWith(SCHEME_WTAI)) {
             // wtai://wp/mc;number
             // number=string(phone-number)