Small improvement of diagnostics.

chrome/browser/resources/google_now/background.js

Index: chrome/browser/resources/google_now/background.js
diff --git a/chrome/browser/resources/google_now/background.js b/chrome/browser/resources/google_now/background.js
index a51529cd01fef8a9fb13c5f09cffc0ace48590ee..161601f090ecf15b2972af2208075a50c942de8e 100644
--- a/chrome/browser/resources/google_now/background.js
+++ b/chrome/browser/resources/google_now/background.js
@@ -285,7 +285,8 @@ function parseAndShowNotificationCards(response, callback) {
  * @param {function()} callback Completion callback.
  */
 function requestNotificationCards(requestParameters, callback) {
-  console.log('requestNotificationCards ' + requestParameters);
+  console.log('requestNotificationCards ' + requestParameters + ' from ' +
+     NOTIFICATION_CARDS_URL);
   recordEvent(DiagnosticEvent.REQUEST_FOR_CARDS_TOTAL);
   // TODO(vadimt): Figure out how to send user's identity to the server.
   var request = new XMLHttpRequest();
@@ -376,7 +377,8 @@ function updateNotificationsCards() {
  *     parameter.
  */
 function requestCardDismissal(notificationId, callbackBoolean) {
-  console.log('requestDismissingCard ' + notificationId);
+  console.log('requestDismissingCard ' + notificationId + ' from ' +
+      NOTIFICATION_CARDS_URL);
   recordEvent(DiagnosticEvent.DISMISS_REQUEST_TOTAL);
   // Send a dismiss request to the server.
   var requestParameters = 'id=' + notificationId;