Pass ID of the calling extension to the native messaging host.

chrome/test/data/extensions/api_test/native_messaging/test.js

Index: chrome/test/data/extensions/api_test/native_messaging/test.js
diff --git a/chrome/test/data/extensions/api_test/native_messaging/test.js b/chrome/test/data/extensions/api_test/native_messaging/test.js
index 2715a4288f79f177848520720d15d0bc11327f15..ab01956e1d6eb5dea81cdbd287ceb03ed9038fcf 100644
--- a/chrome/test/data/extensions/api_test/native_messaging/test.js
+++ b/chrome/test/data/extensions/api_test/native_messaging/test.js
@@ -11,9 +11,11 @@ chrome.test.getConfig(function(config) {
         var message = {"text": "Hi there!", "number": 3};
         chrome.runtime.sendNativeMessage(
             appName, message,
-            chrome.test.callbackPass(function(nativeResponse) {
-          var expectedResponse = {"id": 1, "echo": message};
-          chrome.test.assertEq(expectedResponse, nativeResponse);
+            chrome.test.callbackPass(function(response) {
+          chrome.test.assertEq(1, response.id);
+          chrome.test.assertEq(message, response.echo);
+          chrome.test.assertEq(
+              response.caller_url, window.location.origin + "/");
         }));
       },
 
@@ -28,19 +30,19 @@ chrome.test.getConfig(function(config) {
         var messagesToSend = [{"text": "foo"},
                               {"text": "bar", "funCount": 9001},
                               {}];
-        var expectedResponses = [{"id": 1, "echo": messagesToSend[0]},
-                                 {"id": 2, "echo": messagesToSend[1]},
-                                 {"id": 3, "echo": messagesToSend[2]}];
         var currentMessage = 0;
 
         port = chrome.extension.connectNative(appName);
         port.postMessage(messagesToSend[currentMessage]);
 
         port.onMessage.addListener(function(message) {
-          chrome.test.assertEq(expectedResponses[currentMessage], message);
+          chrome.test.assertEq(currentMessage + 1, message.id);
+          chrome.test.assertEq(messagesToSend[currentMessage], message.echo);
+          chrome.test.assertEq(
+              message.caller_url, window.location.origin + "/");
           currentMessage++;
 
-          if (currentMessage == expectedResponses.length)
+          if (currentMessage == messagesToSend.length)
             chrome.test.notifyPass();
           else
             port.postMessage(messagesToSend[currentMessage]);