Remove factory methods from ChromeApplication.

chrome/android/java/src/org/chromium/chrome/browser/rlz/RevenueStats.java

 // Copyright 2015 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.rlz;
 
 import android.content.Context;
 import android.content.SharedPreferences;
 
 import org.chromium.base.ContextUtils;
 import org.chromium.base.annotations.JNINamespace;
-import org.chromium.chrome.browser.ChromeApplication;
+import org.chromium.chrome.browser.AppHooks;
 import org.chromium.chrome.browser.tab.Tab;
 
 import java.util.concurrent.atomic.AtomicReference;
 
 /**
  * Utility class for managing revenue sharing information.
  */
 @JNINamespace("chrome::android")
 public class RevenueStats {
     private static final String PREF_RLZ_NOTIFIED = "rlz_first_search_notified";
 
     // Use an AtomicReference since getInstance() can be called from multiple threads.
     private static AtomicReference<RevenueStats> sInstance = new AtomicReference<RevenueStats>();
 
     /**
      * Returns the singleton instance of ExternalAuthUtils, creating it if needed.
      */
     public static RevenueStats getInstance() {
         if (sInstance.get() == null) {
-            ChromeApplication application =
-                    (ChromeApplication) ContextUtils.getApplicationContext();
-            sInstance.compareAndSet(null, application.createRevenueStatsInstance());
+            sInstance.compareAndSet(null, AppHooks.get().createRevenueStatsInstance());
         }
         return sInstance.get();
     }
 
     /**
      * Notifies tab creation event.
      */
     public void tabCreated(Tab tab) {}
 
     /**
@@ skipping 25 matching lines @@
     /**
      * Sets rlz value.
      */
     protected static void setRlzParameterValue(String rlz) {
         nativeSetRlzParameterValue(rlz);
     }
 
     private static native void nativeSetSearchClient(String client);
     private static native void nativeSetRlzParameterValue(String rlz);
 }