[Offline Pages] Add a GCMAppHandler for offline page prefetch.

chrome/browser/android/offline_pages/prefetch/prefetch_background_task.cc

 // 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.
 
 #include "chrome/browser/android/offline_pages/prefetch/prefetch_background_task.h"
 
+#include "chrome/browser/offline_pages/prefetch/prefetch_service_factory.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/profiles/profile_android.h"
-#include "components/offline_pages/content/prefetch_service_factory.h"
 #include "content/public/browser/browser_context.h"
 #include "jni/PrefetchBackgroundTask_jni.h"
 
 using base::android::JavaParamRef;
 using base::android::ScopedJavaGlobalRef;
 using base::android::ScopedJavaLocalRef;
 
 namespace offline_pages {
 namespace prefetch {
 
@@ skipping 54 matching lines @@
 
 void PrefetchBackgroundTask::SetNeedsReschedule(bool reschedule) {
   needs_reschedule_ = reschedule;
 }
 
 bool RegisterPrefetchBackgroundTask(JNIEnv* env) {
   return prefetch::RegisterNativesImpl(env);
 }
 
 }  // namespace offline_pages