Revert of PaymentHandler: Implement PaymentInstruments.keys().

content/browser/service_worker/service_worker_context_wrapper.cc

 // Copyright 2013 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 "content/browser/service_worker/service_worker_context_wrapper.h"
 
 #include <map>
 #include <set>
 #include <string>
 #include <utility>
@@ skipping 655 matching lines @@
     const GetUserDataCallback& callback) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
   if (!context_core_) {
     RunSoon(base::Bind(callback, std::vector<std::string>(),
                        SERVICE_WORKER_ERROR_ABORT));
     return;
   }
   context_core_->storage()->GetUserData(registration_id, keys, callback);
 }
 
-void ServiceWorkerContextWrapper::GetRegistrationUserDataByKeyPrefix(
-    int64_t registration_id,
-    const std::string& key_prefix,
-    const GetUserDataCallback& callback) {
-  DCHECK_CURRENTLY_ON(BrowserThread::IO);
-  if (!context_core_) {
-    RunSoon(base::Bind(callback, std::vector<std::string>(),
-                       SERVICE_WORKER_ERROR_ABORT));
-    return;
-  }
-  context_core_->storage()->GetUserDataByKeyPrefix(registration_id, key_prefix,
-                                                   callback);
-}
-
 void ServiceWorkerContextWrapper::StoreRegistrationUserData(
     int64_t registration_id,
     const GURL& origin,
     const std::vector<std::pair<std::string, std::string>>& key_value_pairs,
     const StatusCallback& callback) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
   if (!context_core_) {
     RunSoon(base::Bind(callback, SERVICE_WORKER_ERROR_ABORT));
     return;
   }
@@ skipping 122 matching lines @@
                                     service_worker_provider_id,
                                     std::move(client_ptr_info));
 }
 
 ServiceWorkerContextCore* ServiceWorkerContextWrapper::context() {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
   return context_core_.get();
 }
 
 }  // namespace content