NTP: track shown/blocked suggestions notifications

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

Index: chrome/android/java/src/org/chromium/chrome/browser/notifications/NotificationUmaTracker.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/notifications/NotificationUmaTracker.java b/chrome/android/java/src/org/chromium/chrome/browser/notifications/NotificationUmaTracker.java
index d97bf8f9163f5ee8504adadbaea06804e37be1da..bf85281f2e046702ca76fd62ef7e6315521fcf6c 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/notifications/NotificationUmaTracker.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/notifications/NotificationUmaTracker.java
@@ -21,7 +21,8 @@ import java.lang.annotation.RetentionPolicy;
  */
 public class NotificationUmaTracker {
     @Retention(RetentionPolicy.SOURCE)
-    @IntDef({DOWNLOAD_FILES, DOWNLOAD_PAGES, CLOSE_INCOGNITO, SYSTEM_NOTIFICATION_TYPE_BOUNDARY})
+    @IntDef({DOWNLOAD_FILES, DOWNLOAD_PAGES, CLOSE_INCOGNITO, CONTENT_SUGGESTION,
+            SYSTEM_NOTIFICATION_TYPE_BOUNDARY})

[dgn, 2017/03/16 19:32:26]

Unrelated: IMO SYSTEM_NOTIFICATION_TYPE_BOUNDARY should not be in the enum, as
it's not really a valid value. But that has nothing to do with this CL and it's
private anyway ¯\_(ツ)_/¯

     public @interface SystemNotificationType {}
 
     /*
@@ -34,8 +35,9 @@ public class NotificationUmaTracker {
     public static final int DOWNLOAD_FILES = 0;
     public static final int DOWNLOAD_PAGES = 1;
     public static final int CLOSE_INCOGNITO = 2;
+    public static final int CONTENT_SUGGESTION = 3;
 
-    private static final int SYSTEM_NOTIFICATION_TYPE_BOUNDARY = 3;
+    private static final int SYSTEM_NOTIFICATION_TYPE_BOUNDARY = 4;
 
     private static final String LAST_SHOWN_NOTIFICATION_TYPE_KEY =
             "NotificationUmaTracker.LastShownNotificationType";
@@ -90,4 +92,4 @@ public class NotificationUmaTracker {
         if (!LibraryLoader.isInitialized()) return;
         RecordHistogram.recordEnumeratedHistogram(name, type, SYSTEM_NOTIFICATION_TYPE_BOUNDARY);
     }
-}
+}