[Android] Simplify logic for grabbing initial country-code.

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";
 
     // Block ChildProcessMain thread of render process service until a Java debugger is attached.
     public static final String RENDERER_WAIT_FOR_JAVA_DEBUGGER = "renderer-wait-for-java-debugger";
 
     // 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";
 
+    // Default country code to be used for search engine localization.
+    public static final String DEFAULT_COUNTRY_CODE_AT_INSTALL = "default-country-code";
+
     // Prevent instantiation.
     private BaseSwitches() {}
 }