Instantiate AttachmentDownloader and use it in AttachmentServiceImpl

components/sync_driver/generic_change_processor_unittest.cc

 // Copyright 2014 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 "components/sync_driver/generic_change_processor.h"
 
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/message_loop/message_loop.h"
 #include "base/strings/stringprintf.h"
 #include "components/sync_driver/data_type_error_handler_mock.h"
 #include "components/sync_driver/sync_api_component_factory.h"
 #include "sync/api/attachments/attachment_service_impl.h"
 #include "sync/api/fake_syncable_service.h"
 #include "sync/api/sync_change.h"
 #include "sync/api/sync_merge_result.h"
+#include "sync/internal_api/public/attachments/fake_attachment_downloader.h"
 #include "sync/internal_api/public/attachments/fake_attachment_store.h"
 #include "sync/internal_api/public/attachments/fake_attachment_uploader.h"
 #include "sync/internal_api/public/base/model_type.h"
 #include "sync/internal_api/public/read_node.h"
 #include "sync/internal_api/public/read_transaction.h"
 #include "sync/internal_api/public/sync_encryption_handler.h"
 #include "sync/internal_api/public/test/test_user_share.h"
 #include "sync/internal_api/public/user_share.h"
 #include "sync/internal_api/public/write_node.h"
 #include "sync/internal_api/public/write_transaction.h"
@@ skipping 17 matching lines @@
  private:
   std::vector<syncer::AttachmentList> attachment_lists_;
 };
 
 MockAttachmentService::MockAttachmentService()
     : AttachmentServiceImpl(
           scoped_ptr<syncer::AttachmentStore>(new syncer::FakeAttachmentStore(
               base::MessageLoopProxy::current())),
           scoped_ptr<syncer::AttachmentUploader>(
               new syncer::FakeAttachmentUploader),
+          scoped_ptr<syncer::AttachmentDownloader>(
+              new syncer::FakeAttachmentDownloader),
           NULL) {
 }
 
 MockAttachmentService::~MockAttachmentService() {
 }
 
 void MockAttachmentService::StoreAttachments(
     const syncer::AttachmentList& attachments,
     const StoreCallback& callback) {
   attachment_lists_.push_back(attachments);
@@ skipping 346 matching lines @@
   syncer::ReadNode node(&read_transaction);
   ASSERT_EQ(node.InitByClientTagLookup(syncer::PREFERENCES, tag),
             syncer::BaseNode::INIT_OK);
   syncer::AttachmentIdList attachment_ids = node.GetAttachmentIds();
   EXPECT_EQ(1U, attachment_ids.size());
 }
 
 }  // namespace
 
 }  // namespace browser_sync