Wrap GCed raw pointer parameters of WTF::bind with Persistent

third_party/WebKit/Source/modules/webusb/USB.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/webusb/USB.h"
 
 #include "bindings/core/v8/ScriptPromise.h"
 #include "bindings/core/v8/ScriptPromiseResolver.h"
 #include "core/dom/DOMException.h"
 #include "core/dom/Document.h"
@@ skipping 70 matching lines @@
     ScriptPromiseResolver* resolver = ScriptPromiseResolver::create(scriptState);
     ScriptPromise promise = resolver->promise();
     if (!m_deviceManager) {
         resolver->reject(DOMException::create(NotSupportedError));
     } else {
         String errorMessage;
         if (!scriptState->getExecutionContext()->isSecureContext(errorMessage)) {
             resolver->reject(DOMException::create(SecurityError, errorMessage));
         } else {
             m_deviceManagerRequests.add(resolver);
-            m_deviceManager->GetDevices(nullptr, createBaseCallback(bind(&USB::onGetDevices, this, resolver)));
+            m_deviceManager->GetDevices(nullptr, createBaseCallback(bind(&USB::onGetDevices, wrapPersistent(this), wrapPersistent(resolver))));
         }
     }
     return promise;
 }
 
 ScriptPromise USB::requestDevice(ScriptState* scriptState, const USBDeviceRequestOptions& options)
 {
     ScriptPromiseResolver* resolver = ScriptPromiseResolver::create(scriptState);
     ScriptPromise promise = resolver->promise();
 
@@ skipping 13 matching lines @@
     } else if (!UserGestureIndicator::consumeUserGesture()) {
         resolver->reject(DOMException::create(SecurityError, "Must be handling a user gesture to show a permission request."));
     } else {
         Vector<usb::DeviceFilterPtr> filters;
         if (options.hasFilters()) {
             filters.reserveCapacity(options.filters().size());
             for (const auto& filter : options.filters())
                 filters.append(convertDeviceFilter(filter));
         }
         m_chooserServiceRequests.add(resolver);
-        m_chooserService->GetPermission(std::move(filters), createBaseCallback(bind(&USB::onGetPermission, this, resolver)));
+        m_chooserService->GetPermission(std::move(filters), createBaseCallback(bind(&USB::onGetPermission, wrapPersistent(this), wrapPersistent(resolver))));
     }
     return promise;
 }
 
 ExecutionContext* USB::getExecutionContext() const
 {
     return ContextLifecycleObserver::getExecutionContext();
 }
 
 const AtomicString& USB::interfaceName() const
@@ skipping 91 matching lines @@
 DEFINE_TRACE(USB)
 {
     EventTargetWithInlineData::trace(visitor);
     ContextLifecycleObserver::trace(visitor);
     visitor->trace(m_deviceManagerRequests);
     visitor->trace(m_chooserServiceRequests);
     visitor->trace(m_deviceCache);
 }
 
 } // namespace blink