Regenerate the long-lived test certificates to use SHA-256

net/http/disk_based_cert_cache_unittest.cc

Index: net/http/disk_based_cert_cache_unittest.cc
diff --git a/net/http/disk_based_cert_cache_unittest.cc b/net/http/disk_based_cert_cache_unittest.cc
index 584cae24cbc6f9488ea0e3d534aa2e89c042063b..b2b640b300e6abf6a1623887a7e0c287e56ecc3c 100644
--- a/net/http/disk_based_cert_cache_unittest.cc
+++ b/net/http/disk_based_cert_cache_unittest.cc
@@ -30,10 +30,10 @@ struct TestCertMetaData {
 };
 
 const TestCertMetaData kCert1 = {
-    "root_ca_cert.pem", "cert:4C005EF1CF45F80D4A5A2BCFB00D4F198121E8D4"};
+    "root_ca_cert.pem", "cert:738D348A8AFCEC4F79C3E4B1845D985AF601AB0F"};
 
 const TestCertMetaData kCert2 = {
-    "ok_cert.pem", "cert:9174C7CB9E4919604E7B1BFC430E4929DA45F65F"};
+    "ok_cert.pem", "cert:6C9DFD2CFA9885C71BE6DE0EA0CF962AC8F9131B"};
 
 // MockTransactions are required to use the MockDiskCache backend.
 // |key| is a cache key, and is equivalent to the key that will be