Bug 1244704 - Create a more granular BOOKMARKS_COUNT probe for mobile. r=mfinkle

--HG--
extra : commitid : AvL2RSfcHkE
extra : rebase_source : 2854e6ef97bfa8b401e38caf150b4443210dc641

mobile/android/base/java/org/mozilla/gecko/BrowserApp.java

@@ -1728,7 +1728,7 @@ public class BrowserApp extends GeckoApp
             final BrowserDB db = getProfile().getDB();
             final ContentResolver cr = getContentResolver();
             Telemetry.addToHistogram("PLACES_PAGES_COUNT", db.getCount(cr, "history"));
-            Telemetry.addToHistogram("PLACES_BOOKMARKS_COUNT", db.getCount(cr, "bookmarks"));
+            Telemetry.addToHistogram("FENNEC_BOOKMARKS_COUNT", db.getCount(cr, "bookmarks"));
             Telemetry.addToHistogram("FENNEC_FAVICONS_COUNT", db.getCount(cr, "favicons"));
             Telemetry.addToHistogram("FENNEC_THUMBNAILS_COUNT", db.getCount(cr, "thumbnails"));
             Telemetry.addToHistogram("FENNEC_READING_LIST_COUNT", db.getReadingListAccessor().getCount(cr));

toolkit/components/telemetry/Histograms.json

@@ -3386,6 +3386,15 @@
     "description": "Time taken to download a specified distribution file (msec)",
     "cpp_guard": "ANDROID"
   },
+  "FENNEC_BOOKMARKS_COUNT": {
+    "expires_in_version": "60",
+    "kind": "exponential",
+    "high": "8000",
+    "n_buckets": 20,
+    "description": "Number of bookmarks stored in the browser DB",
+    "alert_emails": ["mobile-frontend@mozilla.com"],
+    "bug_numbers": [1244704]
+  },
   "FENNEC_FAVICONS_COUNT": {
     "expires_in_version": "40",
     "kind": "exponential",