hg: jdk/jdk: 8206925: Support the certificate_authorities extension

[xuelei.fan at oracle.com]

Changeset: 827bac238aa0
Author:    xuelei
Date:      2020-05-27 09:46 -0700
URL:       https://hg.openjdk.java.net/jdk/jdk/rev/827bac238aa0

8206925: Support the certificate_authorities extension
Reviewed-by: mullan

+ src/java.base/share/classes/sun/security/ssl/CertificateAuthoritiesExtension.java
! src/java.base/share/classes/sun/security/ssl/CertificateRequest.java
! src/java.base/share/classes/sun/security/ssl/SSLExtension.java
! src/java.base/share/classes/sun/security/ssl/X509Authentication.java
! test/jdk/javax/net/ssl/templates/SSLContextTemplate.java
+ test/jdk/sun/security/ssl/X509KeyManager/CertificateAuthorities.java
+ test/jdk/sun/security/ssl/X509TrustManagerImpl/CacertsLimit.java
+ test/jdk/sun/security/ssl/X509TrustManagerImpl/TooManyCAs.java