[Android] Add a low-end device mode override flag

base/android/java/src/org/chromium/base/BaseSwitches.java

 // Copyright 2013 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.base;
 
 /**
  * Contains all of the command line switches that are specific to the base/
  * portion of Chromium on Android.
  */
 public abstract class BaseSwitches {
     // Block onCreate() of Chrome until a Java debugger is attached.
     public static final String WAIT_FOR_JAVA_DEBUGGER = "wait-for-java-debugger";
 
+    // Overrides low-end device detection, disabling low-end device optimizations.
+    public static final String DISABLE_LOW_END_DEVICE_MODE = "disable-low-end-device-mode";
+
+    // Overrides low-end device detection, enabling low-end device optimizations.
+    public static final String ENABLE_LOW_END_DEVICE_MODE = "enable-low-end-device-mode";
+
     // Prevent instantiation.
     private BaseSwitches() {}
 };