Revert 89864 - Don't rely on user gestures for deciding when to dismiss infobars.

content/browser/tab_contents/navigation_controller.cc

Index: content/browser/tab_contents/navigation_controller.cc
===================================================================
--- content/browser/tab_contents/navigation_controller.cc	(revision 91739)
+++ content/browser/tab_contents/navigation_controller.cc	(working copy)
@@ -559,6 +559,21 @@
   // The active entry's SiteInstance should match our SiteInstance.
   DCHECK(active_entry->site_instance() == tab_contents_->GetSiteInstance());
 
+  // WebKit doesn't set the "auto" transition on meta refreshes properly (bug
+  // 1051891) so we manually set it for redirects which we normally treat as
+  // "non-user-gestures" where we want to update stuff after navigations.
+  //
+  // Note that the redirect check also checks for a pending entry to
+  // differentiate real redirects from browser initiated navigations to a
+  // redirected entry. This happens when you hit back to go to a page that was
+  // the destination of a redirect, we don't want to treat it as a redirect
+  // even though that's what its transition will be. See bug 1117048.
+  //
+  // TODO(brettw) write a test for this complicated logic.
+  details->is_auto = (PageTransition::IsRedirect(params.transition) &&
+                      !pending_entry()) ||
+      params.gesture == NavigationGestureAuto;
+
   // Now prep the rest of the details for the notification and broadcast.
   details->entry = active_entry;
   details->is_main_frame = PageTransition::IsMainFrame(params.transition);