Precache uses GcmNetworkManager for task scheduling

chrome/android/javatests/src/org/chromium/chrome/browser/precache/MockPrecacheController.java

Index: chrome/android/javatests/src/org/chromium/chrome/browser/precache/MockPrecacheController.java
diff --git a/chrome/android/javatests/src/org/chromium/chrome/browser/precache/MockPrecacheController.java b/chrome/android/javatests/src/org/chromium/chrome/browser/precache/MockPrecacheController.java
new file mode 100644
index 0000000000000000000000000000000000000000..fd1bb20ef4f5e7b91883de11e62ff4e898bdf43a
--- /dev/null
+++ b/chrome/android/javatests/src/org/chromium/chrome/browser/precache/MockPrecacheController.java
@@ -0,0 +1,39 @@
+// Copyright 2015 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 java.util.EnumSet;
+
+/**
+ * PrecacheController class with wakelocks mocked out.
+ */
+public class MockPrecacheController extends PrecacheController {
+    public int acquiredLockCnt = 0;
+    public int releasedLockCnt = 0;
+
+    MockPrecacheController(Context context) {
+        super(context);
+    }
+
+    @Override
+    void acquirePrecachingWakeLock() {
+        acquiredLockCnt++;
+    }
+
+    @Override
+    void releasePrecachingWakeLock() {
+        releasedLockCnt++;
+    }
+
+    @Override
+    EnumSet<FailureReason> interruptionReasons(Context context) {
+        return null;
+    }
+
+    @Override
+    void recordFailureReasons(Context context) {}
+}