Implement onEvent callback framework for UDP

chrome/common/extensions/api/extension_api.json

Index: chrome/common/extensions/api/extension_api.json
diff --git a/chrome/common/extensions/api/extension_api.json b/chrome/common/extensions/api/extension_api.json
index 0c9cd4c75800c41ed58adccf6afb2c2ab7fc7a25..24b320c68e4faa37c77324a950393761ce995615 100644
--- a/chrome/common/extensions/api/extension_api.json
+++ b/chrome/common/extensions/api/extension_api.json
@@ -8929,27 +8929,23 @@
         "properties": {
           "type": {
             "type": "string",
-            "enum": ["data", "error"],
-            "description": "A 'data' event represents data received on the socket. An 'error' event represents an error."
+            "enum": ["writeComplete"],
+            "description": "writeComplete A 'data' event represents data received on the socket. An 'error' event represents an error."
           },
-          "byteCount": {
+          "resultCode": {
             "type": "integer",
-            "optional": true,
-            "description": "The number of bytes received in a 'data' event."
-          },
-          "bytes": {
-            "type": "blob",
-            "optional": true,
-            "description": "The data received."
-          },
-          "errorCode": {
-            "type": "integer",
-            "description": "The error code, if the event type is 'error'.",
+            "description": "The result code, if the event type is writeComplete.",
             "optional": true
           },
-          "errorMessage": {
-            "type": "string",
-            "description": "The error description, if the event type is 'error'.",
+          "isFinalEvent": {
+            "type": "boolean",
+            "description": "Whether this is the final event that this socket will send.",
+            "nodoc": true
+          },
+          "srcId": {
+            "type": "number",
+            "description": "An ID unique to the calling function's context so that events can get routed back to the correct callback.",
+            "nodoc": true,
             "optional": true
           }
         }
@@ -9106,6 +9102,21 @@
           }
         ]
       }
+    ],
+    "events": [
+      {
+        "name": "onEvent",
+        "type": "function",
+        "nodoc": true,
+        "parameters": [
+          {
+            "name": "event",
+            "$ref": "SocketEvent",
+            "description": "The event indicating socket status."
+          }
+        ],
+        "description": "Used to pass events back to the function that called create()."
+      }
     ]
   },
   {