Specialize base::IsWeakReceiver for Blink weak pointers to support base::Bind (1/5)

third_party/WebKit/Source/modules/webusb/USBDevice.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/USBDevice.h"
 
 #include "bindings/core/v8/ScriptPromise.h"
 #include "bindings/core/v8/ScriptPromiseResolver.h"
 #include "bindings/core/v8/ToV8.h"
 #include "core/dom/DOMArrayBuffer.h"
@@ skipping 76 matching lines @@
 
 USBDevice::USBDevice(usb::DeviceInfoPtr deviceInfo, usb::DevicePtr device, ExecutionContext* context)
     : ContextLifecycleObserver(context)
     , m_deviceInfo(std::move(deviceInfo))
     , m_device(std::move(device))
     , m_opened(false)
     , m_deviceStateChangeInProgress(false)
     , m_configurationIndex(-1)
 {
     if (m_device)
-        m_device.set_connection_error_handler(createBaseCallback(bind(&USBDevice::onConnectionError, WeakPersistentThisPointer<USBDevice>(this))));
+        m_device.set_connection_error_handler(createBaseCallback(bind(&USBDevice::onConnectionError, wrapWeakPersistent(this))));
     int configurationIndex = findConfigurationIndex(info().active_configuration);
     if (configurationIndex != -1)
         onConfigurationSelected(true /* success */, configurationIndex);
 }
 
 USBDevice::~USBDevice()
 {
     // |m_device| may still be valid but there should be no more outstanding
     // requests because each holds a persistent handle to this object.
     DCHECK(m_deviceRequests.isEmpty());
@@ skipping 674 matching lines @@
 bool USBDevice::markRequestComplete(ScriptPromiseResolver* resolver)
 {
     auto requestEntry = m_deviceRequests.find(resolver);
     if (requestEntry == m_deviceRequests.end())
         return false;
     m_deviceRequests.remove(requestEntry);
     return true;
 }
 
 } // namespace blink