Add badge to web notifications.

chrome/android/java/src/org/chromium/chrome/browser/notifications/NotificationUIManager.java

Index: chrome/android/java/src/org/chromium/chrome/browser/notifications/NotificationUIManager.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/notifications/NotificationUIManager.java b/chrome/android/java/src/org/chromium/chrome/browser/notifications/NotificationUIManager.java
index fa3a8315e4eb5454d1c699de92855984ed831603..b65ddcbb93327021f7bf0aefeec15d835735c821 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/notifications/NotificationUIManager.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/notifications/NotificationUIManager.java
@@ -436,6 +436,9 @@ static int makeDefaults(int vibrationPatternLength, boolean silent) {
      *             text by the Android notification system.
      * @param icon Icon to be displayed in the notification. Valid Bitmap icons will be scaled to
      *             the platforms, whereas a default icon will be generated for invalid Bitmaps.
+     * @param smallIcon Icon to represent the notification in places where there is not enough space
+     *                  to display the whole notification. It may also be displayed inside the

[Peter Beverloo, 2016/03/03 17:55:38]

Let's explicitly call out the status bar?

[Michael van Ouwerkerk, 2016/03/09 18:28:25]

Right, we're in Android code here.

+     *                  notification.
      * @param vibrationPattern Vibration pattern following the Web Vibration syntax.
      * @param timestamp The timestamp of the event for which the notification is being shown.
      * @param renotify Whether the sound, vibration, and lights should be replayed if the
@@ -447,7 +450,7 @@ static int makeDefaults(int vibrationPatternLength, boolean silent) {
      */
     @CalledByNative
     private void displayNotification(long persistentNotificationId, String origin, String profileId,
-            boolean incognito, String tag, String title, String body, Bitmap icon,
+            boolean incognito, String tag, String title, String body, Bitmap icon, Bitmap smallIcon,
             int[] vibrationPattern, long timestamp, boolean renotify, boolean silent,
             String[] actionTitles, Bitmap[] actionIcons) {
         if (actionTitles.length != actionIcons.length) {
@@ -486,6 +489,7 @@ private void displayNotification(long persistentNotificationId, String origin, S
                         .setBody(body)
                         .setLargeIcon(ensureNormalizedIcon(icon, origin))
                         .setSmallIcon(R.drawable.ic_chrome)
+                        .setSmallIcon(smallIcon)
                         .setContentIntent(clickIntent)
                         .setDeleteIntent(closeIntent)
                         .setTicker(createTickerText(title, body))