PaymentApp: Introduce PaymentAppDatabase class.

content/browser/payments/payment_app_manager_unittest.cc

Index: content/browser/payments/payment_app_manager_unittest.cc
diff --git a/content/browser/payments/payment_app_manager_unittest.cc b/content/browser/payments/payment_app_manager_unittest.cc
index b7e307b9e35a31ac9bc333b6d577109b4db02c3f..8bab9ec6848ed63a72cb046c810e1aaaa65ce8e6 100644
--- a/content/browser/payments/payment_app_manager_unittest.cc
+++ b/content/browser/payments/payment_app_manager_unittest.cc
@@ -66,8 +66,8 @@ class PaymentAppManagerTest : public testing::Test {
     embedded_worker_helper_->context_wrapper()->set_storage_partition(
         storage_partition_impl_.get());
 
-    payment_app_context_ =
-        new PaymentAppContextImpl(embedded_worker_helper_->context_wrapper());
+    payment_app_context_ = new PaymentAppContextImpl();
+    payment_app_context_->Init(embedded_worker_helper_->context_wrapper());
 
     bool called = false;
     embedded_worker_helper_->context()->RegisterServiceWorker(