Avoid showing previous tab when closing an app tab

      Bug: 5188145
      skip setActiveTab when closing a tab launched from an app
      set active tab in onResume

Change-Id: If602358a61690f15fe2e81a6b3d62d51ad15e16d
diff --git a/src/com/android/browser/BaseUi.java b/src/com/android/browser/BaseUi.java
index 6f87463..80f4de8 100644
--- a/src/com/android/browser/BaseUi.java
+++ b/src/com/android/browser/BaseUi.java
@@ -157,6 +157,9 @@
 
     public void onResume() {
         mActivityPaused = false;
+        // check if we exited without setting active tab
+        // b: 5188145
+        setActiveTab(mTabControl.getCurrentTab());
     }
 
     protected boolean isActivityPaused() {