Revert of Use associated interface on DownloadedTempFile

content/browser/loader/downloaded_temp_file_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/loader/downloaded_temp_file_impl.h"
 
 #include "base/memory/ptr_util.h"
 #include "content/browser/loader/resource_dispatcher_host_impl.h"
-#include "mojo/public/cpp/bindings/associated_group.h"
-#include "mojo/public/cpp/bindings/strong_associated_binding.h"
 #include "mojo/public/cpp/bindings/strong_binding.h"
 
 namespace content {
 
 // static
-mojom::DownloadedTempFileAssociatedPtrInfo DownloadedTempFileImpl::Create(
-    mojo::AssociatedGroup* associated_group,
-    int child_id,
-    int request_id) {
-  mojo::AssociatedInterfacePtrInfo<mojom::DownloadedTempFile> ptr_info;
-  mojo::AssociatedInterfaceRequest<mojom::DownloadedTempFile> request;
-  associated_group->CreateAssociatedInterface(
-      mojo::AssociatedGroup::WILL_PASS_PTR, &ptr_info, &request);
-  mojo::MakeStrongAssociatedBinding(
-      base::MakeUnique<DownloadedTempFileImpl>(child_id, request_id),
-      std::move(request));
-  return ptr_info;
-}
-
-// static
-mojom::DownloadedTempFilePtr DownloadedTempFileImpl::CreateForTesting(
+mojo::InterfacePtr<mojom::DownloadedTempFile> DownloadedTempFileImpl::Create(
     int child_id,
     int request_id) {
   mojo::InterfacePtr<mojom::DownloadedTempFile> ptr;
-  mojo::MakeStrongBinding(
+  auto binding = mojo::MakeStrongBinding(
       base::MakeUnique<DownloadedTempFileImpl>(child_id, request_id),
       mojo::MakeRequest(&ptr));
   return ptr;
 }
 
 DownloadedTempFileImpl::~DownloadedTempFileImpl() {
   ResourceDispatcherHostImpl::Get()->UnregisterDownloadedTempFile(child_id_,
                                                                   request_id_);
 }
 DownloadedTempFileImpl::DownloadedTempFileImpl(int child_id, int request_id)
     : child_id_(child_id), request_id_(request_id) {}
 
 }  // namespace content