Introduce bad_message.h for chrome and NaCl.

components/nacl/browser/bad_message.cc

 // Copyright 2015 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/bad_message.h"
+#include "components/nacl/browser/bad_message.h"
 
 #include "base/logging.h"
 #include "base/metrics/histogram_macros.h"
-#include "content/public/browser/render_process_host.h"
+#include "content/public/browser/browser_message_filter.h"
 
-namespace content {
+namespace nacl {
 namespace bad_message {
 
-void ReceivedBadMessage(RenderProcessHost* host, BadMessageReason reason) {
+void ReceivedBadMessage(content::BrowserMessageFilter* filter,
+                        BadMessageReason reason) {
   LOG(ERROR) << "Terminating renderer for bad IPC message, reason " << reason;
-  UMA_HISTOGRAM_ENUMERATION("Stability.BadMessageTerminated.Content", reason,
+  UMA_HISTOGRAM_ENUMERATION("Stability.BadMessageTerminated.NaCl", reason,
                             BAD_MESSAGE_MAX);
-  host->ShutdownForBadMessage();
+  filter->ShutdownForBadMessage();
 }
 
 }  // namespace bad_message
-}  // namespace content
+}  // namespace nacl