Expose a low-end device mode override flags for non-android OSs as well

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";
+    // Force low-end device when set to 1;
+    // Force non-low-end device when set to 0;
+    // Auto-detect low-end device when set to other values or empty;
+    public static final String LOW_END_DEVICE_MODE = "low-end-device-mode";
 
     // Adds additional thread idle time information into the trace event output.
     public static final String ENABLE_IDLE_TRACING = "enable-idle-tracing";
 
     // Prevent instantiation.
     private BaseSwitches() {}
 }