Add support for tab migration to DialogSurface

content/browser/android/content_view_core_impl.cc

Index: content/browser/android/content_view_core_impl.cc
diff --git a/content/browser/android/content_view_core_impl.cc b/content/browser/android/content_view_core_impl.cc
index 9e8bde5bb175839f3147d3beecfaba1f0ff1fd85..c9353c460dc982d07804c41aae73ddfe28aa182f 100644
--- a/content/browser/android/content_view_core_impl.cc
+++ b/content/browser/android/content_view_core_impl.cc
@@ -285,10 +285,12 @@ void ContentViewCoreImpl::UpdateWindowAndroid(
     FOR_EACH_OBSERVER(ContentViewCoreImplObserver,
                       observer_list_,
                       OnAttachedToWindow());
+    Java_ContentViewCore_onAttachedToWindowAndroid(env, obj.obj());
   } else {
     FOR_EACH_OBSERVER(ContentViewCoreImplObserver,
                       observer_list_,
                       OnDetachedFromWindow());
+    Java_ContentViewCore_onDetachedFromWindowAndroid(env, obj.obj());
     view_.RemoveFromParent();
   }
 }