Correctly update the popup window position

ui/views/widget/desktop_aura/desktop_screen_position_client.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/views/widget/desktop_aura/desktop_screen_position_client.h"
 
 #include "ui/views/widget/desktop_aura/desktop_native_widget_aura.h"
 
 namespace views {
 
@@ skipping 27 matching lines @@
   // TODO(jam): Use the 3rd parameter, |display|.
   aura::Window* root = window->GetRootWindow();
 
   // This method assumes that |window| does not have an associated
   // DesktopNativeWidgetAura.
   internal::NativeWidgetPrivate* desktop_native_widget =
       DesktopNativeWidgetAura::ForWindow(root);
   DCHECK(!desktop_native_widget ||
          desktop_native_widget->GetNativeView() != window);
 
+  if (window->IsRootWindow()) {
+    desktop_native_widget->GetWidget()->SetBounds(bounds);
+    return;
+  }
+
   if (PositionWindowInScreenCoordinates(window)) {
     // The caller expects windows we consider "embedded" to be placed in the
     // screen coordinate system. So we need to offset the root window's
     // position (which is in screen coordinates) from these bounds.
 
     gfx::Point origin = bounds.origin();
     aura::Window::ConvertPointToTarget(window->parent(), root, &origin);
 
     gfx::Point host_origin = GetOriginInScreen(root);
     origin.Offset(-host_origin.x(), -host_origin.y());
     window->SetBounds(gfx::Rect(origin, bounds.size()));
     return;
   }
 
   window->SetBounds(bounds);
 }
 
 }  // namespace views