Fixup a changelist where we forgot to call backgroundSchedule.

The previous changelist (https://codereview.chromium.org/2400393002/) created backgroundSchedule, and forwarded
the call in several places, but missed a spot, this corrects
that oversight.

BUG=652889

Review-Url: https://chromiumcodereview.appspot.com/2435393002
Cr-Commit-Position: refs/heads/master@{#426896}

chrome/android/java/src/org/chromium/chrome/browser/offlinepages/BackgroundSchedulerBridge.java

@@ -38,7 +38,8 @@ public class BackgroundSchedulerBridge {
 
     @CalledByNative
     private static void backupSchedule(TriggerConditions triggerConditions, long delayInSeconds) {
-        BackgroundScheduler.schedule(ContextUtils.getApplicationContext(), triggerConditions);
+        BackgroundScheduler.backupSchedule(ContextUtils.getApplicationContext(), triggerConditions,
+                                           delayInSeconds);
     }
 
     @CalledByNative