Add a fallback for unparseable Java version numbers on Mac.

BUG=410651

Review URL: https://codereview.chromium.org/566893002

Cr-Commit-Position: refs/heads/master@{#294672}

chrome/browser/resources/plugin_metadata/plugins_mac.json

@@ -48,6 +48,15 @@
       "application/x-java-vm"
     ],
     "versions": [
+      {
+        "version": "0",
+        "status": "requires_authorization",
+        "comment": "Newer versions of Java don't have a standard version number anymore."
+      },
+      {
+        "version": "12",
+        "status": "out_of_date"
+      },
       {
         "version": "12.8.0",
         "status": "requires_authorization",