Fix 2283089 - ERD47B: Force Close of Launcher2 process when hitting Search button to invoke QSB

In this case, as opposed to what was happening in 1977685, the focused view wasn't the one that was
directly removed, it was a child of the removed view.

core/java/android/view/ViewRoot.java

@@ -1407,8 +1407,8 @@ public final class ViewRoot extends Handler implements ViewParent,
 
             // When in touch mode, focus points to the previously focused view,
             // which may have been removed from the view hierarchy. The following
-            // line checks whether the view is still in the hierarchy
-            if (focus == null || focus.getParent() == null) {
+            // line checks whether the view is still in our hierarchy.
+            if (focus == null || focus.mAttachInfo != mAttachInfo) {
                 mRealFocusedView = null;
                 return false;
             }