Make base::Value::TYPE a scoped enum.

components/proximity_auth/ble/bluetooth_low_energy_device_whitelist.cc

Index: components/proximity_auth/ble/bluetooth_low_energy_device_whitelist.cc
diff --git a/components/proximity_auth/ble/bluetooth_low_energy_device_whitelist.cc b/components/proximity_auth/ble/bluetooth_low_energy_device_whitelist.cc
index da1d36099a5024e28c29b43727b822e3c47bbbf0..e87a224f6cb878921178c175198e3988f745616e 100644
--- a/components/proximity_auth/ble/bluetooth_low_energy_device_whitelist.cc
+++ b/components/proximity_auth/ble/bluetooth_low_energy_device_whitelist.cc
@@ -55,7 +55,7 @@ std::string BluetoothLowEnergyDeviceWhitelist::GetDeviceAddress(
   for (base::DictionaryValue::Iterator it(*device_whitelist); !it.IsAtEnd();
        it.Advance()) {
     std::string value_string;
-    DCHECK(it.value().IsType(base::Value::TYPE_STRING));
+    DCHECK(it.value().IsType(base::Value::Type::STRING));
     if (it.value().GetAsString(&value_string) && value_string == public_key)
       return it.key();
   }
@@ -69,7 +69,7 @@ std::vector<std::string> BluetoothLowEnergyDeviceWhitelist::GetPublicKeys()
   for (base::DictionaryValue::Iterator it(*device_whitelist); !it.IsAtEnd();
        it.Advance()) {
     std::string value_string;
-    DCHECK(it.value().IsType(base::Value::TYPE_STRING));
+    DCHECK(it.value().IsType(base::Value::Type::STRING));
     it.value().GetAsString(&value_string);
     public_keys.push_back(value_string);
   }