Precache uses GcmNetworkManager for task scheduling

chrome/android/java/src/org/chromium/chrome/browser/precache/PrecacheTaskScheduler.java

Index: chrome/android/java/src/org/chromium/chrome/browser/precache/PrecacheTaskScheduler.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/precache/PrecacheTaskScheduler.java b/chrome/android/java/src/org/chromium/chrome/browser/precache/PrecacheTaskScheduler.java
new file mode 100644
index 0000000000000000000000000000000000000000..c51678cb9bd742e1aff76189ae4e45f4ddf6eb8f
--- /dev/null
+++ b/chrome/android/java/src/org/chromium/chrome/browser/precache/PrecacheTaskScheduler.java
@@ -0,0 +1,22 @@
+// 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.precache;
+
+import android.content.Context;
+
+import com.google.android.gms.gcm.GcmNetworkManager;
+import com.google.android.gms.gcm.Task;
+
+import org.chromium.chrome.browser.ChromeBackgroundService;
+
+class PrecacheTaskScheduler {
+    void scheduleTask(Context context, Task task) {
+        GcmNetworkManager.getInstance(context).schedule(task);
+    }
+
+    void cancelTask(Context context, String tag) {
+        GcmNetworkManager.getInstance(context).cancelTask(tag, ChromeBackgroundService.class);
+    }
+}