Always get device conditions from Java for every attempt.

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

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package org.chromium.chrome.browser.offlinepages;
 
 import org.chromium.base.Callback;
 import org.chromium.base.ContextUtils;
 import org.chromium.base.annotations.CalledByNative;
 import org.chromium.base.annotations.JNINamespace;
@@ skipping 29 matching lines @@
     private static void backupSchedule(TriggerConditions triggerConditions, long delayInSeconds) {
         BackgroundScheduler.backupSchedule(ContextUtils.getApplicationContext(), triggerConditions,
                                            delayInSeconds);
     }
 
     @CalledByNative
     private static void unschedule() {
         BackgroundScheduler.unschedule(ContextUtils.getApplicationContext());
     }
 
+    @CalledByNative
+    private static boolean getPowerConditions() {
+        return BackgroundScheduler.getPowerConditions(ContextUtils.getApplicationContext());
+    }
+
+    @CalledByNative
+    private static int getBatteryConditions() {
+        return BackgroundScheduler.getBatteryConditions(ContextUtils.getApplicationContext());
+    }
+
+    @CalledByNative
+    private static int getNetworkConditions() {
+        return BackgroundScheduler.getNetworkConditions(ContextUtils.getApplicationContext());
+    }
+
+
     /**
      * Used by native code to create and pass up Java object encapsulating the
      * trigger conditions.
      */
     @CalledByNative
     private static TriggerConditions createTriggerConditions(boolean requirePowerConnected,
             int minimumBatteryPercentage, boolean requireUnmeteredNetwork) {
         return new TriggerConditions(
                 requirePowerConnected, minimumBatteryPercentage, requireUnmeteredNetwork);
     }
 
     /** Instructs the native RequestCoordinator to start processing. */
     private static native boolean nativeStartScheduledProcessing(boolean powerConnected,
             int batteryPercentage, int netConnectionType, Callback<Boolean> callback);
 }