content: Use stl utilities from the base namespace

content/browser/bluetooth/web_bluetooth_service_impl.cc

 // Copyright 2016 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.
 
 // ID Not In Map Note:
 // A service, characteristic, or descriptor ID not in the corresponding
 // WebBluetoothServiceImpl map [service_id_to_device_address_,
 // characteristic_id_to_service_id_, descriptor_to_characteristic_] implies a
 // hostile renderer because a renderer obtains the corresponding ID from this
 // class and it will be added to the map at that time.
@@ skipping 256 matching lines @@
   }
   std::vector<PrimaryServicesRequestCallback> requests =
       std::move(iter->second);
   pending_primary_services_requests_.erase(iter);
 
   for (const PrimaryServicesRequestCallback& request : requests) {
     request.Run(device);
   }
 
   // Sending get-service responses unexpectedly queued another request.
-  DCHECK(!ContainsKey(pending_primary_services_requests_, device_address));
+  DCHECK(
+      !base::ContainsKey(pending_primary_services_requests_, device_address));
 }
 
 void WebBluetoothServiceImpl::GattCharacteristicValueChanged(
     device::BluetoothAdapter* adapter,
     device::BluetoothRemoteGattCharacteristic* characteristic,
     const std::vector<uint8_t>& value) {
   // Don't notify of characteristics that we haven't returned.
-  if (!ContainsKey(characteristic_id_to_service_id_,
-                   characteristic->GetIdentifier())) {
+  if (!base::ContainsKey(characteristic_id_to_service_id_,
+                         characteristic->GetIdentifier())) {
     return;
   }
 
   // On Chrome OS and Linux, GattCharacteristicValueChanged is called before the
   // success callback for ReadRemoteCharacteristic is called, which could result
   // in an event being fired before the readValue promise is resolved.
   if (!base::ThreadTaskRunnerHandle::Get()->PostTask(
           FROM_HERE,
           base::Bind(&WebBluetoothServiceImpl::NotifyCharacteristicValueChanged,
                      weak_ptr_factory_.GetWeakPtr(),
@@ skipping 697 matching lines @@
   characteristic_id_to_service_id_.clear();
   service_id_to_device_address_.clear();
   connected_devices_.reset(
       new FrameConnectedBluetoothDevices(render_frame_host_));
   allowed_devices_map_ = BluetoothAllowedDevicesMap();
   device_chooser_controller_.reset();
   BluetoothAdapterFactoryWrapper::Get().ReleaseAdapter(this);
 }
 
 }  // namespace content