Adding location events to the histogram

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 0fdbd6724c10e7292d530e9fbf3dc12adacdf8ec..cd7b5a96a1da87e9f2aefef19e9ed6e36f30f55c 100644
--- a/chrome/browser/resources/google_now/background.js
+++ b/chrome/browser/resources/google_now/background.js
@@ -141,7 +141,9 @@ var DiagnosticEvent = {
   CARDS_PARSE_SUCCESS: 2,
   DISMISS_REQUEST_TOTAL: 3,
   DISMISS_REQUEST_SUCCESS: 4,
-  EVENTS_TOTAL: 5  // EVENTS_TOTAL is not an event; all new events need to be
+  LOCATION_REQUEST: 5,
+  LOCATION_UPDATE: 6,
+  EVENTS_TOTAL: 7  // EVENTS_TOTAL is not an event; all new events need to be
                    // added before it.
 };
 
@@ -363,6 +365,7 @@ function requestNotificationCards(position, callback) {
  */
 function requestLocation() {
   console.log('requestLocation');
+  recordEvent(DiagnosticEvent.LOCATION_REQUEST);
   // TODO(vadimt): Figure out location request options.
   chrome.location.watchLocation(LOCATION_WATCH_NAME, {});
 }
@@ -603,4 +606,7 @@ chrome.notifications.onButtonClicked.addListener(
 
 chrome.notifications.onClosed.addListener(onNotificationClosed);
 
-chrome.location.onLocationUpdate.addListener(updateNotificationsCards);
+chrome.location.onLocationUpdate.addListener(function(position) {
+  recordEvent(DiagnosticEvent.LOCATION_UPDATE);
+  updateNotificationsCards(position);
+});