Switch to standard integer types in components/, part 2 of 4.

components/mus/public/cpp/tests/test_window_tree.h

 // Copyright 2015 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_PUBLIC_CPP_TESTS_TEST_WINDOW_TREE_H_
 #define COMPONENTS_MUS_PUBLIC_CPP_TESTS_TEST_WINDOW_TREE_H_
 
+#include <stdint.h>
+
 #include <set>
 
 #include "base/macros.h"
 #include "components/mus/public/interfaces/window_tree.mojom.h"
 
 namespace mus {
 
 // Testing WindowTree implementation.
 class TestWindowTree : public mojom::WindowTree {
  public:
@@ skipping 67 matching lines @@
   bool got_change_;
   uint32_t change_id_;
   std::set<uint32_t> acked_events_;
 
   DISALLOW_COPY_AND_ASSIGN(TestWindowTree);
 };
 
 }  // namespace mus
 
 #endif  // COMPONENTS_MUS_PUBLIC_CPP_TESTS_TEST_WINDOW_TREE_H_