fix web refresh bug

    Bug: 4117355
    force invalidate after layout of title bar changes

Change-Id: I5775517573d15227e4f8a4bc5f84e1246c9d70ff
diff --git a/src/com/android/browser/XLargeUi.java b/src/com/android/browser/XLargeUi.java
index 13a0557..13018af 100644
--- a/src/com/android/browser/XLargeUi.java
+++ b/src/com/android/browser/XLargeUi.java
@@ -463,6 +463,13 @@
         mTitleBar.updateAutoLogin(tab, animate);
     }
 
+    protected void refreshWebView() {
+        Tab tab = getActiveTab();
+        if ((tab != null) && (tab.getWebView() != null)) {
+            tab.getWebView().invalidate();
+        }
+    }
+
     @Override
     public void setUrlTitle(Tab tab) {
         super.setUrlTitle(tab);