Make BeforeInstallPromptEvent cancelable

third_party/WebKit/Source/modules/app_banner/BeforeInstallPromptEvent.cpp

 // 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.
 
 #include "modules/app_banner/BeforeInstallPromptEvent.h"
 
 #include "core/dom/DOMException.h"
 #include "core/dom/Document.h"
 #include "core/dom/ExceptionCode.h"
 #include "core/dom/ExecutionContext.h"
@@ skipping 17 matching lines @@
                                           UserChoiceProperty::kUserChoice)),
       prompt_called_(false) {
   DCHECK(banner_service_);
   DCHECK(binding_.is_bound());
   UseCounter::Count(&frame, UseCounter::kBeforeInstallPromptEvent);
 }
 
 BeforeInstallPromptEvent::BeforeInstallPromptEvent(
     const AtomicString& name,
     const BeforeInstallPromptEventInit& init)
-    : Event(name, false, true), binding_(this), prompt_called_(false) {
+    : Event(name, init), binding_(this), prompt_called_(false) {
   if (init.hasPlatforms())
     platforms_ = init.platforms();
 }
 
 BeforeInstallPromptEvent::~BeforeInstallPromptEvent() {}
 
 void BeforeInstallPromptEvent::Dispose() {
   banner_service_.reset();
   binding_.Close();
 }
@@ skipping 55 matching lines @@
   user_choice_->Resolve(AppBannerPromptResult::Create(
       g_empty_atom, AppBannerPromptResult::Outcome::kDismissed));
 }
 
 DEFINE_TRACE(BeforeInstallPromptEvent) {
   visitor->Trace(user_choice_);
   Event::Trace(visitor);
 }
 
 }  // namespace blink