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

content/browser/renderer_host/websocket_host.cc

Index: content/browser/renderer_host/websocket_host.cc
===================================================================
--- content/browser/renderer_host/websocket_host.cc	(revision 271040)
+++ content/browser/renderer_host/websocket_host.cc	(working copy)
@@ -243,16 +243,15 @@
 
 WebSocketHost::~WebSocketHost() {}
 
-bool WebSocketHost::OnMessageReceived(const IPC::Message& message,
-                                      bool* message_was_ok) {
+bool WebSocketHost::OnMessageReceived(const IPC::Message& message) {
   bool handled = true;
-  IPC_BEGIN_MESSAGE_MAP_EX(WebSocketHost, message, *message_was_ok)
+  IPC_BEGIN_MESSAGE_MAP(WebSocketHost, message)
     IPC_MESSAGE_HANDLER(WebSocketHostMsg_AddChannelRequest, OnAddChannelRequest)
     IPC_MESSAGE_HANDLER(WebSocketMsg_SendFrame, OnSendFrame)
     IPC_MESSAGE_HANDLER(WebSocketMsg_FlowControl, OnFlowControl)
     IPC_MESSAGE_HANDLER(WebSocketMsg_DropChannel, OnDropChannel)
     IPC_MESSAGE_UNHANDLED(handled = false)
-  IPC_END_MESSAGE_MAP_EX()
+  IPC_END_MESSAGE_MAP()
   return handled;
 }