Adds ability for pre-target accelerators to not consume events

services/ui/public/cpp/window_manager_delegate.cc

Index: services/ui/public/cpp/window_manager_delegate.cc
diff --git a/services/ui/public/cpp/window_manager_delegate.cc b/services/ui/public/cpp/window_manager_delegate.cc
new file mode 100644
index 0000000000000000000000000000000000000000..e049b4e140501881d1d0d657415fa9defcbc1b71
--- /dev/null
+++ b/services/ui/public/cpp/window_manager_delegate.cc
@@ -0,0 +1,15 @@
+// Copyright 2016 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 "services/ui/public/cpp/window_manager_delegate.h"
+
+namespace ui {
+
+mojom::EventResult WindowManagerDelegate::OnAccelerator(
+    uint32_t id,
+    const ui::Event& event) {
+  return mojom::EventResult::UNHANDLED;
+}
+
+}  // namespace ui