[Android] Omnibox Placeholder Experiment

chrome/android/java/src/org/chromium/chrome/browser/ChromeSwitches.java

 // Copyright 2014 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;
 
 /**
  * Contains all of the command line switches that are specific to the chrome/
  * portion of Chromium on Android.
  */
@@ skipping 167 matching lines @@
     /**
      * Forces a check for whether the WebAPK's Web Manifest has changed each time that a WebAPK is
      * launched.
      */
     public static final String CHECK_FOR_WEB_MANIFEST_UPDATE_ON_STARTUP =
             "check-for-web-manifest-update-on-startup";
 
     /** Enable Vr Shell development environment. */
     public static final String ENABLE_VR_SHELL_DEV = "enable-vr-shell-dev";
 
+    /**
+     * Determines which of hint text to show in the omnibox url bar.
+     * See about:flags for descriptions.
+     */
+    public static final String OMNIBOX_PLACEHOLDER_EXPERIMENT = "omnibox-placeholder-experiment";
+
     // Prevent instantiation.
     private ChromeSwitches() {}
 }