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

content/browser/frame_host/render_frame_host_impl.cc

 // Copyright 2013 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/browser/frame_host/render_frame_host_impl.h"
 
 #include "base/bind.h"
 #include "base/containers/hash_tables.h"
 #include "base/lazy_instance.h"
 #include "base/metrics/user_metrics_action.h"
@@ skipping 258 matching lines @@
   }
 
   if (delegate_->OnMessageReceived(this, msg))
     return true;
 
   if (cross_process_frame_connector_ &&
       cross_process_frame_connector_->OnMessageReceived(msg))
     return true;
 
   bool handled = true;
-  bool msg_is_ok = true;
-  IPC_BEGIN_MESSAGE_MAP_EX(RenderFrameHostImpl, msg, msg_is_ok)
+  IPC_BEGIN_MESSAGE_MAP(RenderFrameHostImpl, msg)
     IPC_MESSAGE_HANDLER(FrameHostMsg_AddMessageToConsole, OnAddMessageToConsole)
     IPC_MESSAGE_HANDLER(FrameHostMsg_Detach, OnDetach)
     IPC_MESSAGE_HANDLER(FrameHostMsg_FrameFocused, OnFrameFocused)
     IPC_MESSAGE_HANDLER(FrameHostMsg_DidStartProvisionalLoadForFrame,
                         OnDidStartProvisionalLoadForFrame)
     IPC_MESSAGE_HANDLER(FrameHostMsg_DidFailProvisionalLoadWithError,
                         OnDidFailProvisionalLoadWithError)
     IPC_MESSAGE_HANDLER(FrameHostMsg_DidRedirectProvisionalLoad,
                         OnDidRedirectProvisionalLoad)
     IPC_MESSAGE_HANDLER(FrameHostMsg_DidFailLoadWithError,
@@ skipping 18 matching lines @@
                         OnDidAccessInitialDocument)
     IPC_MESSAGE_HANDLER(FrameHostMsg_DidDisownOpener, OnDidDisownOpener)
     IPC_MESSAGE_HANDLER(FrameHostMsg_UpdateTitle, OnUpdateTitle)
     IPC_MESSAGE_HANDLER(FrameHostMsg_UpdateEncoding, OnUpdateEncoding)
     IPC_MESSAGE_HANDLER(DesktopNotificationHostMsg_RequestPermission,
                         OnRequestDesktopNotificationPermission)
     IPC_MESSAGE_HANDLER(DesktopNotificationHostMsg_Show,
                         OnShowDesktopNotification)
     IPC_MESSAGE_HANDLER(DesktopNotificationHostMsg_Cancel,
                         OnCancelDesktopNotification)
-  IPC_END_MESSAGE_MAP_EX()
-
-  if (!msg_is_ok) {
-    // The message had a handler, but its de-serialization failed.
-    // Kill the renderer.
-    RecordAction(base::UserMetricsAction("BadMessageTerminate_RFH"));
-    GetProcess()->ReceivedBadMessage();
-  }
+  IPC_END_MESSAGE_MAP()
 
   return handled;
 }
 
 void RenderFrameHostImpl::Init() {
   GetProcess()->ResumeRequestsForView(routing_id_);
 }
 
 void RenderFrameHostImpl::OnAddMessageToConsole(
     int32 level,
@@ skipping 557 matching lines @@
   cancel_notification_callbacks_.erase(notification_id);
 }
 
 void RenderFrameHostImpl::DesktopNotificationPermissionRequestDone(
     int callback_context) {
   Send(new DesktopNotificationMsg_PermissionRequestDone(
       routing_id_, callback_context));
 }
 
 }  // namespace content