Ensure container is attached to Window

ui/android/java/src/org/chromium/ui/base/ViewAndroidDelegate.java

Index: ui/android/java/src/org/chromium/ui/base/ViewAndroidDelegate.java
diff --git a/ui/android/java/src/org/chromium/ui/base/ViewAndroidDelegate.java b/ui/android/java/src/org/chromium/ui/base/ViewAndroidDelegate.java
index aca3a8fe2db019187d19ff5c6ef0123c1ca2c0ae..82d09ea85aba6095b160d67ec5238c93b1586bb1 100644
--- a/ui/android/java/src/org/chromium/ui/base/ViewAndroidDelegate.java
+++ b/ui/android/java/src/org/chromium/ui/base/ViewAndroidDelegate.java
@@ -31,7 +31,7 @@ public abstract class ViewAndroidDelegate {
     @CalledByNative
     public View acquireView() {
         ViewGroup containerView = getContainerView();
-        if (containerView == null) return null;
+        if (containerView == null || containerView.getParent() == null) return null;
         View anchorView = new View(containerView.getContext());
         containerView.addView(anchorView);
         return anchorView;