[Offline Pages] Add an observer for requests in the CCT namespace.

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

 // Copyright 2017 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;
 
 import android.app.Notification;
 import android.content.Intent;
 import android.os.Handler;
 import android.os.Looper;
 
+import org.chromium.base.Callback;
 import org.chromium.base.ContextUtils;
 import org.chromium.base.VisibleForTesting;
 import org.chromium.base.annotations.CalledByNative;
 import org.chromium.chrome.browser.banners.AppDetailsDelegate;
 import org.chromium.chrome.browser.customtabs.CustomTabsConnection;
 import org.chromium.chrome.browser.datausage.ExternalDataUseObserver;
 import org.chromium.chrome.browser.externalauth.ExternalAuthUtils;
 import org.chromium.chrome.browser.feedback.EmptyFeedbackReporter;
 import org.chromium.chrome.browser.feedback.FeedbackReporter;
 import org.chromium.chrome.browser.gsa.GSAHelper;
 import org.chromium.chrome.browser.help.HelpAndFeedback;
 import org.chromium.chrome.browser.historyreport.AppIndexingReporter;
 import org.chromium.chrome.browser.init.ProcessInitializationHandler;
 import org.chromium.chrome.browser.instantapps.InstantAppsHandler;
 import org.chromium.chrome.browser.locale.LocaleManager;
 import org.chromium.chrome.browser.media.VideoPersister;
 import org.chromium.chrome.browser.metrics.VariationsSession;
 import org.chromium.chrome.browser.multiwindow.MultiWindowUtils;
 import org.chromium.chrome.browser.net.qualityprovider.ExternalEstimateProviderAndroid;
+import org.chromium.chrome.browser.offlinepages.CCTRequestStatus;
 import org.chromium.chrome.browser.omaha.RequestGenerator;
 import org.chromium.chrome.browser.physicalweb.PhysicalWebBleClient;
 import org.chromium.chrome.browser.policy.PolicyAuditor;
 import org.chromium.chrome.browser.preferences.LocationSettings;
 import org.chromium.chrome.browser.rlz.RevenueStats;
 import org.chromium.chrome.browser.services.AndroidEduOwnerCheckCallback;
 import org.chromium.chrome.browser.signin.GoogleActivityController;
 import org.chromium.chrome.browser.sync.GmsCoreSyncListener;
 import org.chromium.chrome.browser.tab.AuthenticatorNavigationInterceptor;
 import org.chromium.chrome.browser.tab.Tab;
@@ skipping 243 matching lines @@
 
     /**
      * @return Whether the renderer should detect whether video elements are in fullscreen. The
      * detection results can be retrieved through
      * {@link WebContents.hasActiveEffectivelyFullscreenVideo()}.
      */
     @CalledByNative
     public boolean shouldDetectVideoFullscreen() {
         return false;
     }
+
+    @CalledByNative
+    public Callback<CCTRequestStatus> getOfflinePagesCCTRequestDoneCallback() {

[David Trainor- moved to gerrit, 2017/05/23 16:53:14]

Just going to suggest adding a javadoc, even though the name is damn descriptive
:D!

[dewittj, 2017/05/23 17:02:50]

Done.

+        return null;
+    }
 }