DO NOT COMMIT (will be split in sub-components) - clang-tidy WaitableEvent refactor

components/leveldb/leveldb_mojo_proxy.cc

 // 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.
 
 #include "components/leveldb/leveldb_mojo_proxy.h"
 
 #include <set>
 
 #include "base/bind.h"
 #include "base/callback.h"
@@ skipping 126 matching lines @@
 }
 
 LevelDBMojoProxy::~LevelDBMojoProxy() {
   DCHECK_EQ(0, outstanding_opaque_dirs_);
 }
 
 void LevelDBMojoProxy::RunInternal(const base::Closure& task) {
   if (task_runner_->BelongsToCurrentThread()) {
     task.Run();
   } else {
-    base::WaitableEvent done_event(false, false);
+    base::WaitableEvent done_event(
+        base::WaitableEvent::ResetPolicy::AUTOMATIC,
+        base::WaitableEvent::InitialState::NOT_SIGNALED);
     task_runner_->PostTask(
         FROM_HERE,
         base::Bind(&LevelDBMojoProxy::DoOnOtherThread,
                    this,
                    task,
                    base::Unretained(&done_event)));
     done_event.Wait();
   }
 }
 
@@ skipping 162 matching lines @@
     *out_lock = l;
   }
 }
 
 void LevelDBMojoProxy::UnlockFileImpl(std::unique_ptr<OpaqueLock> lock,
                                       filesystem::mojom::FileError* out_error) {
   lock->lock_file->Unlock(out_error);
 }
 
 }  // namespace leveldb