mus: Allow embedder to intercept events.

components/mus/ws/window_tree_unittest.cc

 // Copyright 2014 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 "components/mus/ws/window_tree.h"
 
 #include <stdint.h>
 
 #include <string>
 #include <vector>
@@ skipping 184 matching lines @@
   ServerWindow* embed_window = wm_tree()->GetWindowByClientId(embed_window_id);
   ASSERT_TRUE(embed_window);
   EXPECT_TRUE(wm_tree()->SetWindowVisibility(embed_window_id, true));
   ASSERT_TRUE(FirstRoot(wm_tree()));
   const ClientWindowId wm_root_id = FirstRootId(wm_tree());
   EXPECT_TRUE(wm_tree()->AddWindow(wm_root_id, embed_window_id));
   display()->root_window()->SetBounds(gfx::Rect(0, 0, 100, 100));
   mojom::WindowTreeClientPtr client;
   mojom::WindowTreeClientRequest client_request = GetProxy(&client);
   wm_client()->Bind(std::move(client_request));
-  wm_tree()->Embed(embed_window_id, std::move(client));
+  const uint32_t embed_flags = 0;
+  wm_tree()->Embed(embed_window_id, std::move(client), embed_flags);
   WindowTree* tree1 = window_server()->GetTreeWithRoot(embed_window);
   ASSERT_TRUE(tree1 != nullptr);
   ASSERT_NE(tree1, wm_tree());
 
   embed_window->SetBounds(gfx::Rect(0, 0, 50, 50));
 
   const ClientWindowId child1_id(BuildClientWindowId(tree1, 1));
   EXPECT_TRUE(tree1->NewWindow(child1_id, ServerWindow::Properties()));
   EXPECT_TRUE(tree1->AddWindow(ClientWindowIdForWindow(tree1, embed_window),
                                child1_id));
@@ skipping 791 matching lines @@
   // Set capture from the embedded client and make sure it gets the event.
   ASSERT_TRUE(
       embed_tree->SetCapture(ClientWindowIdForWindow(embed_tree, window)));
   DispatchEventWithoutAck(CreateMouseMoveEvent(22, 23));
   EXPECT_EQ(embed_tree, wm_state_test_api.tree_awaiting_input_ack());
 }
 
 }  // namespace test
 }  // namespace ws
 }  // namespace mus