[Offline Pages] Remove obsolete synchronous API methods.

chrome/browser/android/offline_pages/offline_page_bridge.h

 // 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.
 
 #ifndef CHROME_BROWSER_ANDROID_OFFLINE_PAGES_OFFLINE_PAGE_BRIDGE_H_
 #define CHROME_BROWSER_ANDROID_OFFLINE_PAGES_OFFLINE_PAGE_BRIDGE_H_
 
 #include <stdint.h>
 
 #include "base/android/jni_android.h"
@@ skipping 26 matching lines @@
   void OfflinePageModelLoaded(OfflinePageModel* model) override;
   void OfflinePageModelChanged(OfflinePageModel* model) override;
   void OfflinePageDeleted(int64_t offline_id,
                           const ClientId& client_id) override;
 
   void HasPages(JNIEnv* env,
                 const base::android::JavaParamRef<jobject>& obj,
                 const base::android::JavaParamRef<jstring>& name_space,
                 const base::android::JavaParamRef<jobject>& j_callback_obj);
 
-  bool MaybeHasPages(JNIEnv* env,
-                     const base::android::JavaParamRef<jobject>& obj,
-                     const base::android::JavaParamRef<jstring>& name_space);
-
   void GetAllPages(JNIEnv* env,
                    const base::android::JavaParamRef<jobject>& obj,
                    const base::android::JavaParamRef<jobject>& j_result_obj,
                    const base::android::JavaParamRef<jobject>& j_callback_obj);
 
-  void GetPagesToCleanUp(
-      JNIEnv* env,
-      const base::android::JavaParamRef<jobject>& obj,
-      const base::android::JavaParamRef<jobject>& j_result_obj);
-
   base::android::ScopedJavaLocalRef<jlongArray> GetOfflineIdsForClientId(
       JNIEnv* env,
       const base::android::JavaParamRef<jobject>& obj,
       const base::android::JavaParamRef<jstring>& j_client_id_namespace,
       const base::android::JavaParamRef<jstring>& j_client_id);
 
   base::android::ScopedJavaLocalRef<jobject> GetPageByOfflineId(
       JNIEnv* env,
       const base::android::JavaParamRef<jobject>& obj,
       jlong offline_id);
@@ skipping 54 matching lines @@
   DISALLOW_COPY_AND_ASSIGN(OfflinePageBridge);
 };
 
 bool RegisterOfflinePageBridge(JNIEnv* env);
 
 }  // namespace android
 }  // namespace offline_pages
 
 #endif  // CHROME_BROWSER_ANDROID_OFFLINE_PAGES_OFFLINE_PAGE_BRIDGE_H_