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

Index: chrome/browser/chrome_net_benchmarking_message_filter.cc
===================================================================
--- chrome/browser/chrome_net_benchmarking_message_filter.cc	(revision 271040)
+++ chrome/browser/chrome_net_benchmarking_message_filter.cc	(working copy)
@@ -43,10 +43,9 @@
 }
 
 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)
@@ -55,7 +54,7 @@
     IPC_MESSAGE_HANDLER(ChromeViewHostMsg_ClearPredictorCache,
                         OnClearPredictorCache)
     IPC_MESSAGE_UNHANDLED(handled = false)
-  IPC_END_MESSAGE_MAP_EX()
+  IPC_END_MESSAGE_MAP()
   return handled;
 }