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

chrome/browser/chrome_net_benchmarking_message_filter.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/browser/chrome_net_benchmarking_message_filter.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/command_line.h"
 #include "base/macros.h"
@@ skipping 25 matching lines @@
     net::URLRequestContextGetter* request_context)
     : BrowserMessageFilter(ChromeBenchmarkingMsgStart),
       profile_(profile),
       request_context_(request_context) {
 }
 
 ChromeNetBenchmarkingMessageFilter::~ChromeNetBenchmarkingMessageFilter() {
 }
 
 bool ChromeNetBenchmarkingMessageFilter::OnMessageReceived(
-    const IPC::Message& message, bool* message_was_ok) {
+    const IPC::Message& message) {
   bool handled = true;
-  IPC_BEGIN_MESSAGE_MAP_EX(ChromeNetBenchmarkingMessageFilter, message,
-                           *message_was_ok)
+  IPC_BEGIN_MESSAGE_MAP(ChromeNetBenchmarkingMessageFilter, message)
     IPC_MESSAGE_HANDLER(ChromeViewHostMsg_CloseCurrentConnections,
                         OnCloseCurrentConnections)
     IPC_MESSAGE_HANDLER_DELAY_REPLY(ChromeViewHostMsg_ClearCache, OnClearCache)
     IPC_MESSAGE_HANDLER(ChromeViewHostMsg_ClearHostResolverCache,
                         OnClearHostResolverCache)
     IPC_MESSAGE_HANDLER(ChromeViewHostMsg_ClearPredictorCache,
                         OnClearPredictorCache)
     IPC_MESSAGE_UNHANDLED(handled = false)
-  IPC_END_MESSAGE_MAP_EX()
+  IPC_END_MESSAGE_MAP()
   return handled;
 }
 
 void ChromeNetBenchmarkingMessageFilter::OnClearCache(IPC::Message* reply_msg) {
   // This function is disabled unless the user has enabled
   // benchmarking extensions.
   if (!CheckBenchmarkingEnabled()) {
     NOTREACHED() << "Received unexpected benchmarking IPC";
     return;
   }
@@ skipping 72 matching lines @@
   static bool checked = false;
   static bool result = false;
   if (!checked) {
     const CommandLine& command_line = *CommandLine::ForCurrentProcess();
     result = command_line.HasSwitch(switches::kEnableNetBenchmarking);
     checked = true;
   }
   return result;
 }