mus: Allow embedder to intercept events.

components/mus/ws/test_utils.h

 // 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.
 
 #ifndef COMPONENTS_MUS_WS_TEST_UTILS_H_
 #define COMPONENTS_MUS_WS_TEST_UTILS_H_
 
 #include <stdint.h>
 
 #include <vector>
@@ skipping 60 matching lines @@
   explicit WindowTreeTestApi(WindowTree* tree);
   ~WindowTreeTestApi();
 
   void set_user_id(const UserId& user_id) { tree_->user_id_ = user_id; }
   void set_window_manager_internal(mojom::WindowManager* wm_internal) {
     tree_->window_manager_internal_ = wm_internal;
   }
 
   void ClearAck() { tree_->event_ack_id_ = 0; }
   void EnableCapture() { tree_->event_ack_id_ = 1u; }
+  void AckLastEvent(mojom::EventResult result) {
+    tree_->OnWindowInputEventAck(tree_->event_ack_id_, result);
+  }
 
   void SetEventObserver(mojom::EventMatcherPtr matcher,
                         uint32_t event_observer_id);
 
  private:
   WindowTree* tree_;
 
   DISALLOW_COPY_AND_ASSIGN(WindowTreeTestApi);
 };
 
@@ skipping 410 matching lines @@
 
 // Creates a new visible window as a child of the single root of |tree|.
 // |client_id| set to the ClientWindowId of the new window.
 ServerWindow* NewWindowInTree(WindowTree* tree, ClientWindowId* client_id);
 
 }  // namespace test
 }  // namespace ws
 }  // namespace mus
 
 #endif  // COMPONENTS_MUS_WS_TEST_UTILS_H_