Fix stale keyboard bounds on login screen

ui/keyboard/keyboard_layout_manager.cc

Index: ui/keyboard/keyboard_layout_manager.cc
diff --git a/ui/keyboard/keyboard_layout_manager.cc b/ui/keyboard/keyboard_layout_manager.cc
index d7faf0fa7ab27cf20608019ccb880abe80b4e215..9946060cd9668396af686bca34061953533bc39b 100644
--- a/ui/keyboard/keyboard_layout_manager.cc
+++ b/ui/keyboard/keyboard_layout_manager.cc
@@ -56,7 +56,10 @@ void KeyboardLayoutManager::SetChildBounds(aura::Window* child,
     // case the show keyboard request is called before the height is set.
     controller_->ShowKeyboard(false);
   } else {
-    controller_->NotifyKeyboardBoundsChanging(requested_bounds);
+    // We need to send out this notification only if keyboard is visible since
+    // keyboard window is resized even if keyboard is hidden.
+    if (controller_->keyboard_visible())
+      controller_->NotifyKeyboardBoundsChanging(requested_bounds);
   }
 }