Kill renderers for bad password forms in --site-per-process.

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