Adds ability for accelerators to add key/value pairs to KeyEvent

services/ui/ws/window_manager_client_unittest.cc

Index: services/ui/ws/window_manager_client_unittest.cc
diff --git a/services/ui/ws/window_manager_client_unittest.cc b/services/ui/ws/window_manager_client_unittest.cc
index 02a59a7096c0b0adeb056c7eb4e7079a2043c313..989ce6c85348a096d0a0a20a9d4af4318243b633 100644
--- a/services/ui/ws/window_manager_client_unittest.cc
+++ b/services/ui/ws/window_manager_client_unittest.cc
@@ -67,8 +67,11 @@ class TestWindowManagerDelegate : public aura::WindowManagerDelegate {
                       const display::Display& display) override {}
   void OnWmDisplayRemoved(aura::WindowTreeHostMus* window_tree_host) override {}
   void OnWmDisplayModified(const display::Display& display) override {}
-  mojom::EventResult OnAccelerator(uint32_t accelerator_id,
-                                   const ui::Event& event) override {
+  mojom::EventResult OnAccelerator(
+      uint32_t accelerator_id,
+      const ui::Event& event,
+      std::unordered_map<std::string, std::vector<uint8_t>>* properties)
+      override {
     return ui::mojom::EventResult::UNHANDLED;
   }
   void OnWmPerformMoveLoop(aura::Window* window,