Trying to activate a window in a workspace other than the current is ignored while a system modal d…

ash/shelf/shelf_layout_manager.cc

Index: ash/shelf/shelf_layout_manager.cc
diff --git a/ash/shelf/shelf_layout_manager.cc b/ash/shelf/shelf_layout_manager.cc
index aa3ab2f23ace794786c43d683555bd5b762e6c35..d36b643a08cd67b593517e71a1d3a8bb7decd800 100644
--- a/ash/shelf/shelf_layout_manager.cc
+++ b/ash/shelf/shelf_layout_manager.cc
@@ -494,6 +494,10 @@ void ShelfLayoutManager::OnWindowActivated(aura::Window* gained_active,
   UpdateAutoHideStateNow();
 }
 
+void ShelfLayoutManager::OnWindowActivationRequestCompleted(
+    aura::Window* request_active, aura::Window* actual_active) {
+}
+
 bool ShelfLayoutManager::IsHorizontalAlignment() const {
   return alignment_ == SHELF_ALIGNMENT_BOTTOM ||
          alignment_ == SHELF_ALIGNMENT_TOP;