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

content/renderer/render_frame_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/renderer/render_frame_impl.h"
 
 #include <map>
 #include <string>
 
 #include "base/auto_reset.h"
@@ skipping 627 matching lines @@
   GetContentClient()->SetActiveURL(frame_->document().url());
 
   ObserverListBase<RenderFrameObserver>::Iterator it(observers_);
   RenderFrameObserver* observer;
   while ((observer = it.GetNext()) != NULL) {
     if (observer->OnMessageReceived(msg))
       return true;
   }
 
   bool handled = true;
-  bool msg_is_ok = true;
-  IPC_BEGIN_MESSAGE_MAP_EX(RenderFrameImpl, msg, msg_is_ok)
+  IPC_BEGIN_MESSAGE_MAP(RenderFrameImpl, msg)
     IPC_MESSAGE_HANDLER(FrameMsg_Navigate, OnNavigate)
     IPC_MESSAGE_HANDLER(FrameMsg_BeforeUnload, OnBeforeUnload)
     IPC_MESSAGE_HANDLER(FrameMsg_SwapOut, OnSwapOut)
     IPC_MESSAGE_HANDLER(FrameMsg_BuffersSwapped, OnBuffersSwapped)
     IPC_MESSAGE_HANDLER_GENERIC(FrameMsg_CompositorFrameSwapped,
                                 OnCompositorFrameSwapped(msg))
     IPC_MESSAGE_HANDLER(FrameMsg_ChildFrameProcessGone, OnChildFrameProcessGone)
     IPC_MESSAGE_HANDLER(FrameMsg_ContextMenuClosed, OnContextMenuClosed)
     IPC_MESSAGE_HANDLER(FrameMsg_CustomContextMenuAction,
                         OnCustomContextMenuAction)
@@ skipping 15 matching lines @@
     IPC_MESSAGE_HANDLER(FrameMsg_SetEditableSelectionOffsets,
                         OnSetEditableSelectionOffsets)
     IPC_MESSAGE_HANDLER(FrameMsg_SetCompositionFromExistingText,
                         OnSetCompositionFromExistingText)
     IPC_MESSAGE_HANDLER(FrameMsg_ExtendSelectionAndDelete,
                         OnExtendSelectionAndDelete)
 #if defined(OS_MACOSX)
     IPC_MESSAGE_HANDLER(InputMsg_CopyToFindPboard, OnCopyToFindPboard)
 #endif
     IPC_MESSAGE_HANDLER(FrameMsg_Reload, OnReload)
-  IPC_END_MESSAGE_MAP_EX()
-
-  if (!msg_is_ok) {
-    // The message had a handler, but its deserialization failed.
-    // Kill the renderer to avoid potential spoofing attacks.
-    int id = msg.type();
-    CHECK(false) << "Unable to deserialize " << id << " in RenderFrameImpl.";
-  }
+  IPC_END_MESSAGE_MAP()
 
   return handled;
 }
 
 void RenderFrameImpl::OnNavigate(const FrameMsg_Navigate_Params& params) {
   MaybeHandleDebugURL(params.url);
   if (!render_view_->webview())
     return;
 
   render_view_->OnNavigate(params);
@@ skipping 2767 matching lines @@
       weak_factory_.GetWeakPtr(),
       render_view_->media_player_manager_,
       stream_texture_factory,
       RenderThreadImpl::current()->GetMediaThreadMessageLoopProxy(),
       new RenderMediaLog());
 }
 
 #endif
 
 }  // namespace content