Support socket endpoint permissions for AppsV2 Socket API.

chrome/test/data/extensions/socket_permissions/socket2.json

Index: chrome/test/data/extensions/socket_permissions/socket2.json
diff --git a/chrome/test/data/extensions/socket_permissions/socket2.json b/chrome/test/data/extensions/socket_permissions/socket2.json
new file mode 100644
index 0000000000000000000000000000000000000000..50571bdd423a98c008146f992dd19550d0cae27b
--- /dev/null
+++ b/chrome/test/data/extensions/socket_permissions/socket2.json
@@ -0,0 +1,23 @@
+{
+  "name": "effective host permisions test",
+  "version": "1.0",
+  "manifest_version": 2,
+  "app" : {
+    "background": {
+      "scripts": ["background.js"]
+    }
+  },
+  "permissions": [
+    ["socket", [
+      "tcp-connect",
+      "tcp-connect:example.com",
+      "tcp-connect:example.com:80",
+      "tcp-connect:example.com:*",
+      "tcp-connect:*.example.com",
+      "tcp-listen",
+      "tcp-listen::8080",
+      "udp-bind::8888",
+      "udp-send-to:239.255.255.250:1900"
+    ]]
+  ]
+}