Bug 1155604 - Increase limit for pending pings before Telemetry evicts them. r=vladan

toolkit/components/telemetry/TelemetryFile.jsm

@@ -32,7 +32,7 @@ const MAX_PING_FILE_AGE = 14 * 24 * 60 * 60 * 1000; // 2 weeks
 const OVERDUE_PING_FILE_AGE = 7 * 24 * 60 * 60 * 1000; // 1 week
 
 // Maximum number of pings to save.
-const MAX_LRU_PINGS = 17;
+const MAX_LRU_PINGS = 50;
 
 // The number of outstanding saved pings that we have issued loading
 // requests for.