Adds ability for pre-target accelerators to not consume events

services/ui/test_wm/test_wm.cc

Index: services/ui/test_wm/test_wm.cc
diff --git a/services/ui/test_wm/test_wm.cc b/services/ui/test_wm/test_wm.cc
index 8739c1ffbc717f40770d6e8be7d47d5cc9a2c6e4..78f5a9d2ee0ac41a95c8610bccfe531406251b2a 100644
--- a/services/ui/test_wm/test_wm.cc
+++ b/services/ui/test_wm/test_wm.cc
@@ -86,9 +86,6 @@ class TestWM : public shell::Service,
     window_manager_client_->SetFrameDecorationValues(
         std::move(frame_decoration_values));
   }
-  void OnAccelerator(uint32_t id, const ui::Event& event) override {
-    // Don't care.
-  }
   void OnWmPerformMoveLoop(Window* window,
                            mojom::MoveLoopSource source,
                            const gfx::Point& cursor_location,