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

ui/aura/test/aura_test_base.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/aura/test/aura_test_base.h"
 
 #include "ui/aura/client/window_parenting_client.h"
 #include "ui/aura/mus/property_utils.h"
 #include "ui/aura/mus/window_tree_client.h"
 #include "ui/aura/mus/window_tree_host_mus.h"
@@ skipping 188 matching lines @@
     if (iter->get() == window_tree_host) {
       window_tree_hosts_.erase(iter);
       return;
     }
   }
   NOTREACHED();
 }
 
 void AuraTestBase::OnWmDisplayModified(const display::Display& display) {}
 
-ui::mojom::EventResult AuraTestBase::OnAccelerator(uint32_t id,
-                                                   const ui::Event& event) {
+ui::mojom::EventResult AuraTestBase::OnAccelerator(
+    uint32_t id,
+    const ui::Event& event,
+    std::unordered_map<std::string, std::vector<uint8_t>>* properties) {
   return ui::mojom::EventResult::HANDLED;
 }
 
 void AuraTestBase::OnWmPerformMoveLoop(
     Window* window,
     ui::mojom::MoveLoopSource source,
     const gfx::Point& cursor_location,
     const base::Callback<void(bool)>& on_done) {}
 
 void AuraTestBase::OnWmCancelMoveLoop(Window* window) {}
@@ skipping 28 matching lines @@
 
 AuraTestBaseMus::~AuraTestBaseMus() {}
 
 void AuraTestBaseMus::SetUp() {
   ConfigureBackend(test::BackendType::MUS);
   AuraTestBase::SetUp();
 }
 
 }  // namespace test
 }  // namespace aura