Revert of When we switch tabs in chrome, the tab being switched away from gets hidden/shown/hidden.

content/browser/web_contents/web_contents_view_aura.cc

Index: content/browser/web_contents/web_contents_view_aura.cc
diff --git a/content/browser/web_contents/web_contents_view_aura.cc b/content/browser/web_contents/web_contents_view_aura.cc
index f242e7f149a890fc7999d7851d67404a310a8a03..ecbe02ca04e5d4dd798d5a9a6599dbc6e03229c1 100644
--- a/content/browser/web_contents/web_contents_view_aura.cc
+++ b/content/browser/web_contents/web_contents_view_aura.cc
@@ -1578,6 +1578,19 @@
   return ConvertFromWeb(current_drag_op_);
 }
 
+void WebContentsViewAura::OnWindowParentChanged(aura::Window* window,
+                                                aura::Window* parent) {
+  // Ignore any visibility changes in the hierarchy below.
+  if (window != window_.get() && window_->Contains(window))
+    return;
+
+  // On Windows we will get called with a parent of NULL as part of the shut
+  // down process. As such we do only change the visibility when a parent gets
+  // set.
+  if (parent)
+    UpdateWebContentsVisibility(window->IsVisible());
+}
+
 void WebContentsViewAura::OnWindowVisibilityChanged(aura::Window* window,
                                                     bool visible) {
   // Ignore any visibility changes in the hierarchy below.