alternate ntp: fix content origin when overlay shrinks to shorter than top bars

chrome/browser/ui/views/frame/browser_view_layout.cc

Index: chrome/browser/ui/views/frame/browser_view_layout.cc
diff --git a/chrome/browser/ui/views/frame/browser_view_layout.cc b/chrome/browser/ui/views/frame/browser_view_layout.cc
index 97538653e1a2fbc6eb66198d8842d73ce37888b6..52432b3e850f67885c2566b392bd0a19ee7a4968 100644
--- a/chrome/browser/ui/views/frame/browser_view_layout.cc
+++ b/chrome/browser/ui/views/frame/browser_view_layout.cc
@@ -339,6 +339,10 @@ void BrowserViewLayout::Layout(views::View* host) {
   // Now set the contents to display at their previous origin if we just hid the
   // bookmark and/or infobars.
   if (active_top_margin == 0 && !old_contents_origin.IsOrigin()) {
+    // Retrieve the overlay height again since it may have changed in layouts
+    // triggered in LayoutTabContents().
+    overlay_height = contents_container_->overlay_height();
+    // Get the new origin of contents.
     gfx::Point new_contents_origin(contents->bounds().origin());
     views::View::ConvertPointToTarget(contents->parent(), browser_view_,
                                       &new_contents_origin);