Ensure that any IPC sent from a child process that couldn't be deserialized causes that p…

content/browser/renderer_host/render_process_host_impl.cc

Index: content/browser/renderer_host/render_process_host_impl.cc
===================================================================
--- content/browser/renderer_host/render_process_host_impl.cc	(revision 270662)
+++ content/browser/renderer_host/render_process_host_impl.cc	(working copy)
@@ -1308,8 +1308,7 @@
   mark_child_process_activity_time();
   if (msg.routing_id() == MSG_ROUTING_CONTROL) {
     // Dispatch control messages.
-    bool msg_is_ok = true;
-    IPC_BEGIN_MESSAGE_MAP_EX(RenderProcessHostImpl, msg, msg_is_ok)
+    IPC_BEGIN_MESSAGE_MAP(RenderProcessHostImpl, msg)
       IPC_MESSAGE_HANDLER(ChildProcessHostMsg_ShutdownRequest,
                           OnShutdownRequest)
       IPC_MESSAGE_HANDLER(ChildProcessHostMsg_DumpHandlesDone,
@@ -1322,15 +1321,8 @@
       // Adding single handlers for your service here is fine, but once your
       // service needs more than one handler, please extract them into a new
       // message filter and add that filter to CreateMessageFilters().
-    IPC_END_MESSAGE_MAP_EX()
+    IPC_END_MESSAGE_MAP()
 
-    if (!msg_is_ok) {
-      // The message had a handler, but its de-serialization failed.
-      // We consider this a capital crime. Kill the renderer if we have one.
-      LOG(ERROR) << "bad message " << msg.type() << " terminating renderer.";
-      RecordAction(base::UserMetricsAction("BadMessageTerminate_BRPH"));
-      ReceivedBadMessage();
-    }
     return true;
   }
 
@@ -1347,11 +1339,10 @@
 
     // If this is a SwapBuffers, we need to ack it if we're not going to handle
     // it so that the GPU process doesn't get stuck in unscheduled state.
-    bool msg_is_ok = true;
-    IPC_BEGIN_MESSAGE_MAP_EX(RenderProcessHostImpl, msg, msg_is_ok)
+    IPC_BEGIN_MESSAGE_MAP(RenderProcessHostImpl, msg)
       IPC_MESSAGE_HANDLER(ViewHostMsg_CompositorSurfaceBuffersSwapped,
                           OnCompositorSurfaceBuffersSwappedNoHost)
-    IPC_END_MESSAGE_MAP_EX()
+    IPC_END_MESSAGE_MAP()
     return true;
   }
   return listener->OnMessageReceived(msg);
@@ -1372,6 +1363,14 @@
   ProcessDied(true /* already_dead */);
 }
 
+void RenderProcessHostImpl::OnBadMessageReceived(const IPC::Message& message) {
+  // Message de-serialization failed. We consider this a capital crime. Kill the
+  // renderer if we have one.
+  LOG(ERROR) << "bad message " << message.type() << " terminating renderer.";
+  RecordAction(base::UserMetricsAction("BadMessageTerminate_BRPH"));
+  ReceivedBadMessage();
+}
+
 BrowserContext* RenderProcessHostImpl::GetBrowserContext() const {
   return browser_context_;
 }