PaymentApp: Add PaymentAppProvider class.

content/browser/payments/payment_app_context_impl.cc

 // Copyright 2016 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/payments/payment_app_context_impl.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/memory/ptr_util.h"
@@ skipping 43 matching lines @@
   DCHECK(base::ContainsKey(payment_app_managers_, payment_app_manager));
 
   payment_app_managers_.erase(payment_app_manager);
 }
 
 PaymentAppDatabase* PaymentAppContextImpl::payment_app_database() const {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
   return payment_app_database_.get();
 }
 
-void PaymentAppContextImpl::GetAllManifests(
-    const GetAllManifestsCallback& callback) {
-  DCHECK_CURRENTLY_ON(BrowserThread::UI);
-  BrowserThread::PostTask(
-      BrowserThread::IO, FROM_HERE,
-      base::Bind(&PaymentAppContextImpl::GetAllManifestsOnIO, this, callback));
-}
-
 PaymentAppContextImpl::~PaymentAppContextImpl() {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   DCHECK(is_shutdown_);
 }
 
 void PaymentAppContextImpl::CreatePaymentAppDatabaseOnIO(
     scoped_refptr<ServiceWorkerContextWrapper> service_worker_context) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
   payment_app_database_ =
       base::MakeUnique<PaymentAppDatabase>(service_worker_context);
@@ skipping 14 matching lines @@
   payment_app_managers_.clear();
   payment_app_database_.reset();
 }
 
 void PaymentAppContextImpl::DidShutdown() {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 
   is_shutdown_ = true;
 }
 
-void PaymentAppContextImpl::GetAllManifestsOnIO(
-    const GetAllManifestsCallback& callback) {
-  DCHECK_CURRENTLY_ON(BrowserThread::IO);
-  payment_app_database()->ReadAllManifests(base::Bind(
-      &PaymentAppContextImpl::DidGetAllManifestsOnIO, this, callback));
-}
-
-void PaymentAppContextImpl::DidGetAllManifestsOnIO(
-    const GetAllManifestsCallback& callback,
-    Manifests manifests) {
-  DCHECK_CURRENTLY_ON(BrowserThread::IO);
-
-  BrowserThread::PostTask(
-      BrowserThread::UI, FROM_HERE,
-      base::Bind(callback, base::Passed(std::move(manifests))));
-}
-
 }  // namespace content