Migrate WTF::HashMap::get() to ::at()

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 129 matching lines @@
 }
 
 void USB::contextDestroyed(ExecutionContext*) {
   m_deviceManager.reset();
   m_deviceManagerRequests.clear();
   m_chooserService.reset();
   m_chooserServiceRequests.clear();
 }
 
 USBDevice* USB::getOrCreateDevice(usb::DeviceInfoPtr deviceInfo) {
-  USBDevice* device = m_deviceCache.get(deviceInfo->guid);
+  USBDevice* device = m_deviceCache.at(deviceInfo->guid);
   if (!device) {
     String guid = deviceInfo->guid;
     usb::DevicePtr pipe;
     m_deviceManager->GetDevice(guid, mojo::MakeRequest(&pipe));
     device = USBDevice::create(std::move(deviceInfo), std::move(pipe),
                                getExecutionContext());
     m_deviceCache.insert(guid, device);
   }
   return device;
 }
@@ skipping 34 matching lines @@
 void USB::OnDeviceAdded(usb::DeviceInfoPtr deviceInfo) {
   if (!m_deviceManager)
     return;
 
   dispatchEvent(USBConnectionEvent::create(
       EventTypeNames::connect, getOrCreateDevice(std::move(deviceInfo))));
 }
 
 void USB::OnDeviceRemoved(usb::DeviceInfoPtr deviceInfo) {
   String guid = deviceInfo->guid;
-  USBDevice* device = m_deviceCache.get(guid);
+  USBDevice* device = m_deviceCache.at(guid);
   if (!device)
     device = USBDevice::create(std::move(deviceInfo), nullptr,
                                getExecutionContext());
   dispatchEvent(USBConnectionEvent::create(EventTypeNames::disconnect, device));
   m_deviceCache.erase(guid);
 }
 
 void USB::onDeviceManagerConnectionError() {
   m_deviceManager.reset();
   for (ScriptPromiseResolver* resolver : m_deviceManagerRequests)
@@ skipping 10 matching lines @@
 
 DEFINE_TRACE(USB) {
   visitor->trace(m_deviceManagerRequests);
   visitor->trace(m_chooserServiceRequests);
   visitor->trace(m_deviceCache);
   EventTargetWithInlineData::trace(visitor);
   ContextLifecycleObserver::trace(visitor);
 }
 
 }  // namespace blink