[Android] Omnibox Placeholder Experiment

chrome/android/java/src/org/chromium/chrome/browser/util/FeatureUtilities.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.util;
 
 import android.annotation.SuppressLint;
 import android.annotation.TargetApi;
 import android.content.Context;
 import android.content.Intent;
 import android.content.pm.PackageManager;
 import android.content.pm.ResolveInfo;
 import android.os.Build;
 import android.os.Bundle;
 import android.os.StrictMode;
 import android.os.UserManager;
 import android.speech.RecognizerIntent;
 import android.text.TextUtils;
 
 import org.chromium.base.CommandLine;
 import org.chromium.base.ContextUtils;
 import org.chromium.base.FieldTrialList;
 import org.chromium.base.Log;
 import org.chromium.base.ThreadUtils;
 import org.chromium.base.VisibleForTesting;
 import org.chromium.chrome.browser.ApplicationLifetime;
 import org.chromium.chrome.browser.ChromeFeatureList;
 import org.chromium.chrome.browser.ChromeSwitches;
 import org.chromium.chrome.browser.firstrun.FirstRunGlueImpl;
+import org.chromium.chrome.browser.omnibox.UrlBarFieldTrial;
 import org.chromium.chrome.browser.preferences.ChromePreferenceManager;
 import org.chromium.chrome.browser.tabmodel.DocumentModeAssassin;
 import org.chromium.chrome.browser.webapps.ChromeWebApkHost;
 import org.chromium.components.signin.AccountManagerHelper;
 import org.chromium.ui.base.DeviceFormFactor;
 
 import java.util.List;
 
 /**
  * A utility {@code class} meant to help determine whether or not certain features are supported by
@@ skipping 141 matching lines @@
     }
 
     /**
      * Caches flags that must take effect on startup but are set via native code.
      */
     public static void cacheNativeFlags() {
         cacheHerbFlavor();
         ChromeWebApkHost.cacheEnabledStateForNextLaunch();
         cacheChromeHomeEnabled();
         FirstRunGlueImpl.cacheFirstRunPrefs();
+        UrlBarFieldTrial.cacheUrlBarHint();
     }
 
     /**
      * Caches which flavor of Herb the user prefers from native.
      */
     private static void cacheHerbFlavor() {
         Context context = ContextUtils.getApplicationContext();
         if (isHerbDisallowed(context)) return;
 
         String oldFlavor = getHerbFlavor();
@@ skipping 65 matching lines @@
     /**
      * @return Whether or not the expand button for Chrome Home is enabled.
      */
     public static boolean isChromeHomeExpandButtonEnabled() {
         return ChromeFeatureList.isEnabled(ChromeFeatureList.CHROME_HOME_EXPAND_BUTTON);
     }
 
     private static native void nativeSetCustomTabVisible(boolean visible);
     private static native void nativeSetIsInMultiWindowMode(boolean isInMultiWindowMode);
 }