clang-tidy WaitableEvent refactor (Android side)

android_webview/browser/aw_form_database_service.cc

 // Copyright (c) 2013 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 "android_webview/browser/aw_form_database_service.h"
 
 #include "base/logging.h"
 #include "base/memory/ptr_util.h"
 #include "base/synchronization/waitable_event.h"
 #include "components/autofill/core/browser/webdata/autofill_table.h"
@@ skipping 59 matching lines @@
 }
 
 void AwFormDatabaseService::ClearFormDataImpl() {
   base::Time begin;
   base::Time end = base::Time::Max();
   autofill_data_->RemoveFormElementsAddedBetween(begin, end);
   autofill_data_->RemoveAutofillDataModifiedBetween(begin, end);
 }
 
 bool AwFormDatabaseService::HasFormData() {
-  WaitableEvent completion(false, false);
+  WaitableEvent completion(base::WaitableEvent::ResetPolicy::AUTOMATIC,
+                           base::WaitableEvent::InitialState::NOT_SIGNALED);
   bool result = false;
   BrowserThread::PostTask(
       BrowserThread::DB,
       FROM_HERE,
       base::Bind(&AwFormDatabaseService::HasFormDataImpl,
                  base::Unretained(this),
                  &completion,
                  &result));
   completion.Wait();
   return result;
@@ skipping 27 matching lines @@
   if (it == result_map_.end()) {
     LOG(WARNING) << "Received unexpected callback from web data service";
     return;
   }
   *(it->second.result) = has_form_data;
   it->second.completion->Signal();
   result_map_.erase(h);
 }
 
 }  // namespace android_webview