Uses TriggerConditions in the BackgroundScheduler.

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

Index: chrome/android/java/src/org/chromium/chrome/browser/offlinepages/OfflinePageUtils.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/offlinepages/OfflinePageUtils.java b/chrome/android/java/src/org/chromium/chrome/browser/offlinepages/OfflinePageUtils.java
index 1c0759ca5e0dcebba77083f71809587568282da5..cd416e25317e5ed7cbe78df2d0041441aa946ab8 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/offlinepages/OfflinePageUtils.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/offlinepages/OfflinePageUtils.java
@@ -213,15 +213,7 @@ public class OfflinePageUtils {
     }
 
     public static DeviceConditions getDeviceConditions(Context context) {
-        IntentFilter filter = new IntentFilter(Intent.ACTION_BATTERY_CHANGED);
-        // Note this is a sticky intent, so we aren't really registering a receiver, just getting
-        // the sticky intent.  That means that we don't need to unregister the filter later.
-        Intent batteryStatus = context.registerReceiver(null, filter);
-        if (batteryStatus == null) return null;
-
-        return new DeviceConditions(isPowerConnected(batteryStatus),
-                batteryPercentage(batteryStatus),
-                NetworkChangeNotifier.getInstance().getCurrentConnectionType());
+        return getInstance().getDeviceConditionsImpl(context);
     }
 
     /**
@@ -280,6 +272,19 @@ public class OfflinePageUtils {
         return OfflinePageBridge.getForProfile(profile);
     }
 
+    /** Returns the current device conditions. May be overridden for testing. */
+    protected DeviceConditions getDeviceConditionsImpl(Context context) {
+        IntentFilter filter = new IntentFilter(Intent.ACTION_BATTERY_CHANGED);
+        // Note this is a sticky intent, so we aren't really registering a receiver, just getting
+        // the sticky intent.  That means that we don't need to unregister the filter later.
+        Intent batteryStatus = context.registerReceiver(null, filter);
+        if (batteryStatus == null) return null;
+
+        return new DeviceConditions(isPowerConnected(batteryStatus),
+                batteryPercentage(batteryStatus),
+                NetworkChangeNotifier.getInstance().getCurrentConnectionType());
+    }
+
     @VisibleForTesting
     static void setInstanceForTesting(OfflinePageUtils instance) {
         sInstance = instance;