Remove IPC_BEGIN_MESSAGE_MAP_EX macro since r270839 made all bad IPCs kill their child processes.

chrome/renderer/chrome_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 "chrome/renderer/chrome_mock_render_thread.h"
 
 #include <vector>
 
 #include "base/values.h"
 #include "chrome/renderer/mock_printer.h"
@@ skipping 35 matching lines @@
     const scoped_refptr<base::MessageLoopProxy>& proxy) {
   io_message_loop_proxy_ = proxy;
 }
 
 bool ChromeMockRenderThread::OnMessageReceived(const IPC::Message& msg) {
   if (content::MockRenderThread::OnMessageReceived(msg))
     return true;
 
   // Some messages we do special handling.
   bool handled = true;
-  bool msg_is_ok = true;
-  IPC_BEGIN_MESSAGE_MAP_EX(ChromeMockRenderThread, msg, msg_is_ok)
+  IPC_BEGIN_MESSAGE_MAP(ChromeMockRenderThread, msg)
     IPC_MESSAGE_HANDLER(ExtensionHostMsg_OpenChannelToExtension,
                         OnOpenChannelToExtension)
 #if defined(ENABLE_PRINTING)
     IPC_MESSAGE_HANDLER(PrintHostMsg_GetDefaultPrintSettings,
                         OnGetDefaultPrintSettings)
     IPC_MESSAGE_HANDLER(PrintHostMsg_ScriptedPrint, OnScriptedPrint)
     IPC_MESSAGE_HANDLER(PrintHostMsg_UpdatePrintSettings, OnUpdatePrintSettings)
     IPC_MESSAGE_HANDLER(PrintHostMsg_DidGetPrintedPagesCount,
                         OnDidGetPrintedPagesCount)
     IPC_MESSAGE_HANDLER(PrintHostMsg_DidPrintPage, OnDidPrintPage)
     IPC_MESSAGE_HANDLER(PrintHostMsg_DidGetPreviewPageCount,
                         OnDidGetPreviewPageCount)
     IPC_MESSAGE_HANDLER(PrintHostMsg_DidPreviewPage, OnDidPreviewPage)
     IPC_MESSAGE_HANDLER(PrintHostMsg_CheckForCancel, OnCheckForCancel)
 #if defined(OS_WIN)
     IPC_MESSAGE_HANDLER(PrintHostMsg_DuplicateSection, OnDuplicateSection)
 #endif
 #if defined(OS_CHROMEOS)
     IPC_MESSAGE_HANDLER(PrintHostMsg_AllocateTempFileForPrinting,
                         OnAllocateTempFileForPrinting)
     IPC_MESSAGE_HANDLER(PrintHostMsg_TempFileForPrintingWritten,
                         OnTempFileForPrintingWritten)
 #endif  // defined(OS_CHROMEOS)
 #endif  // defined(ENABLE_PRINTING)
     IPC_MESSAGE_UNHANDLED(handled = false)
-  IPC_END_MESSAGE_MAP_EX()
+  IPC_END_MESSAGE_MAP()
   return handled;
 }
 
 void ChromeMockRenderThread::OnOpenChannelToExtension(
     int routing_id,
     const ExtensionMsg_ExternalConnectionInfo& info,
     const std::string& channel_name,
     bool include_tls_channel_id,
     int* port_id) {
   *port_id = 0;
@@ skipping 126 matching lines @@
 }
 
 void ChromeMockRenderThread::set_print_preview_cancel_page_number(int page) {
   print_preview_cancel_page_number_ = page;
 }
 
 int ChromeMockRenderThread::print_preview_pages_remaining() const {
   return print_preview_pages_remaining_;
 }
 #endif  // defined(ENABLE_PRINTING)