Manual refactor to enum-based WaitableEvent for remaining mac/ios files

content/browser/mach_broker_mac_unittest.cc

 // Copyright (c) 2009 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 "content/browser/mach_broker_mac.h"
 
 #include "base/command_line.h"
 #include "base/synchronization/lock.h"
 #include "base/synchronization/waitable_event.h"
 #include "base/test/multiprocess_test.h"
 #include "base/test/test_timeouts.h"
 #include "content/public/test/test_browser_thread_bundle.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "testing/multiprocess_func_list.h"
 
 namespace content {
 
 class MachBrokerTest : public testing::Test,
                        public base::PortProvider::Observer {
  public:
   MachBrokerTest()
-      : event_(true, false), received_process_(base::kNullProcessHandle) {
+      : event_(base::WaitableEvent::ResetPolicy::MANUAL,
+               base::WaitableEvent::InitialState::NOT_SIGNALED),
+        received_process_(base::kNullProcessHandle) {
     broker_.AddObserver(this);
   }
   ~MachBrokerTest() override {
     broker_.RemoveObserver(this);
   }
 
   // Helper function to acquire/release locks and call |PlaceholderForPid()|.
   void AddPlaceholderForPid(base::ProcessHandle pid, int child_process_id) {
     base::AutoLock lock(broker_.GetLock());
     broker_.AddPlaceholderForPid(pid, child_process_id);
@@ skipping 69 matching lines @@
   EXPECT_EQ(static_cast<mach_port_t>(MACH_PORT_NULL),
             broker_.TaskForPid(child_process.Handle() + 1));
 
   InvalidateChildProcessId(7);
   EXPECT_EQ(static_cast<mach_port_t>(MACH_PORT_NULL),
             broker_.TaskForPid(child_process.Handle()));
   EXPECT_EQ(0, GetChildProcessCount(7));
 }
 
 }  // namespace content