fix title bar update bug

    Bug: 3470752
    exit editing before switching tabs, so the updates stick

Change-Id: Ic47351d86c4da639d49dfcc96968b9334c4f7031
diff --git a/src/com/android/browser/XLargeUi.java b/src/com/android/browser/XLargeUi.java
index 8684042..7a00422 100644
--- a/src/com/android/browser/XLargeUi.java
+++ b/src/com/android/browser/XLargeUi.java
@@ -202,6 +202,9 @@
 
     @Override
     public void setActiveTab(Tab tab) {
+        if (mTitleBar.isEditingUrl()) {
+            mTitleBar.stopEditingUrl();
+        }
         super.setActiveTab(tab);
         ScrollWebView view = (ScrollWebView) tab.getWebView();
         // TabControl.setCurrentTab has been called before this,