Update static Yahoo PKP pins

Bug: 863877
Change-Id: I15547be6d4ab6367ca5c84f6b7e0b70f7bb70734
Reviewed-on: https://chromium-review.googlesource.com/1244576Reviewed-by: Bence Béky <bnc@chromium.org>
Commit-Queue: Nick Harper <nharper@chromium.org>
Cr-Commit-Position: refs/heads/master@{#594570}

net/http/transport_security_state_static.json

@@ -202,20 +202,16 @@
     {
       "name": "yahoo",
       "static_spki_hashes": [
-         "DigiCertAssuredIDRoot",
-         "DigiCertGlobalRoot",
-         "DigiCertGlobalRootG2",
-         "DigiCertGlobalRootG3",
-         "DigiCertTrustedRootG4",
-         "DigiCertEVRoot",
-         "VeriSignClass2_G2",
-         "VeriSignClass2_G3",
-         "VeriSignClass3_G3",
-         "VeriSignClass3_G4",
-         "VeriSignClass3_G5",
-         "VeriSignUniversal",
-         "YahooBackup1",
-         "YahooBackup2"
+        "DigiCertAssuredIDRoot",
+        "DigiCertGlobalRoot",
+        "DigiCertGlobalRootG2",
+        "DigiCertGlobalRootG3",
+        "DigiCertTrustedRootG4",
+        "DigiCertEVRoot",
+        "GlobalSignRootCA",
+        "GlobalSignRootCA_R3",
+        "YahooBackup1",
+        "YahooBackup2"
       ],
       "report_uri": "http://csp.yahoo.com/beacon/csp?src=yahoocom-hpkp-report-only"
     },