Remove explicit keyword from multi-argument constructors

net/ftp/ftp_network_transaction_unittest.cc

Index: net/ftp/ftp_network_transaction_unittest.cc
diff --git a/net/ftp/ftp_network_transaction_unittest.cc b/net/ftp/ftp_network_transaction_unittest.cc
index 4b929ba93fe205e5719ccf2d78a0b4089e16c3b9..d8bf37783463ec167a50054a4c0c9ecf23cf784a 100644
--- a/net/ftp/ftp_network_transaction_unittest.cc
+++ b/net/ftp/ftp_network_transaction_unittest.cc
@@ -628,8 +628,7 @@ class FtpSocketDataProviderEvilEpsv : public FtpSocketDataProviderFileDownload {
 class FtpSocketDataProviderEvilPasv
     : public FtpSocketDataProviderFileDownloadWithPasvFallback {
  public:
-  explicit FtpSocketDataProviderEvilPasv(const char* pasv_response,
-                                         State expected_state)
+  FtpSocketDataProviderEvilPasv(const char* pasv_response, State expected_state)
       : pasv_response_(pasv_response),
         expected_state_(expected_state) {
   }