ipc: Use a global for the process's attachment broker.

content/public/test/mock_render_thread.cc

 // Copyright (c) 2012 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/public/test/mock_render_thread.h"
 
 #include "base/single_thread_task_runner.h"
 #include "base/thread_task_runner_handle.h"
 #include "content/common/frame_messages.h"
 #include "content/common/view_messages.h"
@@ skipping 171 matching lines @@
 
 #if defined(OS_WIN)
 void MockRenderThread::PreCacheFont(const LOGFONT& log_font) {
 }
 
 void MockRenderThread::ReleaseCachedFonts() {
 }
 
 #endif  // OS_WIN
 
-IPC::AttachmentBroker* MockRenderThread::GetAttachmentBroker() {
-  return nullptr;
-}
-
 ServiceRegistry* MockRenderThread::GetServiceRegistry() {
   return NULL;
 }
 
 void MockRenderThread::SendCloseMessage() {
   ViewMsg_Close msg(routing_id_);
   RenderViewImpl::FromRoutingID(routing_id_)->OnMessageReceived(msg);
 }
 
 // The Widget expects to be returned valid route_id.
@@ skipping 56 matching lines @@
 void MockRenderThread::OnDuplicateSection(
     base::SharedMemoryHandle renderer_handle,
     base::SharedMemoryHandle* browser_handle) {
   // We don't have to duplicate the input handles since RenderViewTest does not
   // separate a browser process from a renderer process.
   *browser_handle = renderer_handle;
 }
 #endif  // defined(OS_WIN)
 
 }  // namespace content