Revert of precache: Move the java files into //components/precache/android

components/precache/android/java/src/org/chromium/components/precache/DeviceState.java

Index: components/precache/android/java/src/org/chromium/components/precache/DeviceState.java
diff --git a/components/precache/android/java/src/org/chromium/components/precache/DeviceState.java b/components/precache/android/java/src/org/chromium/components/precache/DeviceState.java
deleted file mode 100644
index 70995ca5240019c29306e52fca4cf93a4c9eed74..0000000000000000000000000000000000000000
--- a/components/precache/android/java/src/org/chromium/components/precache/DeviceState.java
+++ /dev/null
@@ -1,79 +0,0 @@
-// 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.components.precache;
-
-import android.content.Context;
-import android.content.Intent;
-import android.content.IntentFilter;
-import android.net.ConnectivityManager;
-import android.os.BatteryManager;
-
-import org.chromium.base.ApiCompatibilityUtils;
-import org.chromium.base.VisibleForTesting;
-
-/**
- * Utility class that provides information about the current state of the device.
- */
-public class DeviceState {
-    private static DeviceState sDeviceState = null;
-
-    /** Disallow Construction of DeviceState objects. Use {@link #getInstance()} instead to create
-     * a singleton instance.
-     */
-    protected DeviceState() {}
-
-    public static DeviceState getInstance() {
-        if (sDeviceState == null) sDeviceState = new DeviceState();
-        return sDeviceState;
-    }
-
-    protected NetworkInfoDelegateFactory mNetworkInfoDelegateFactory =
-            new NetworkInfoDelegateFactory();
-
-    @VisibleForTesting
-    void setNetworkInfoDelegateFactory(NetworkInfoDelegateFactory factory) {
-        mNetworkInfoDelegateFactory = factory;
-    }
-
-    /** @return integer representing the current status of the battery. */
-    @VisibleForTesting
-    int getStickyBatteryStatus(Context context) {
-        IntentFilter iFilter = new IntentFilter(Intent.ACTION_BATTERY_CHANGED);
-        // Call registerReceiver on context.getApplicationContext(), not on context itself, because
-        // context could be a BroadcastReceiver context, which would throw an
-        // android.content.ReceiverCallNotAllowedException.
-        Intent batteryStatus = context.getApplicationContext().registerReceiver(null, iFilter);
-
-        if (batteryStatus == null) {
-            return BatteryManager.BATTERY_STATUS_UNKNOWN;
-        }
-        return batteryStatus.getIntExtra(BatteryManager.EXTRA_STATUS,
-                BatteryManager.BATTERY_STATUS_UNKNOWN);
-    }
-
-    /** @return whether the device is connected to power. */
-    public boolean isPowerConnected(Context context) {
-        int status = getStickyBatteryStatus(context);
-        return status == BatteryManager.BATTERY_STATUS_CHARGING
-                || status == BatteryManager.BATTERY_STATUS_FULL;
-    }
-
-    public boolean isInteractive(Context context) {
-        return ApiCompatibilityUtils.isInteractive(context);
-    }
-
-    /** @return whether the currently active network is Wi-Fi, not roaming, and not metered. */
-    public boolean isWifiAvailable(Context context) {
-        NetworkInfoDelegate networkInfo =
-                mNetworkInfoDelegateFactory.getNetworkInfoDelegate(context);
-        return (networkInfo.isValid()
-                && networkInfo.getType() == ConnectivityManager.TYPE_WIFI
-                && networkInfo.isAvailable()
-                && networkInfo.isConnected()
-                && !networkInfo.isRoaming()
-                && !networkInfo.isActiveNetworkMetered());
-    }
-}
-