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diff --git a/content/browser/ssl/ssl_host_state.h b/content/browser/ssl/ssl_host_state.h
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+++ b/content/browser/ssl/ssl_host_state.h
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+// Copyright (c) 2010 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.
+
+#ifndef CONTENT_BROWSER_SSL_SSL_HOST_STATE_H_
+#define CONTENT_BROWSER_SSL_SSL_HOST_STATE_H_
+#pragma once
+
+#include <string>
+#include <map>
+#include <set>
+
+#include "base/basictypes.h"
+#include "base/threading/non_thread_safe.h"
+#include "googleurl/src/gurl.h"
+#include "net/base/x509_certificate.h"
+
+// SSLHostState
+//
+// The SSLHostState encapulates the host-specific state for SSL errors.  For
+// example, SSLHostState remembers whether the user has whitelisted a
+// particular broken cert for use with particular host.  We separate this state
+// from the SSLManager because this state is shared across many navigation
+// controllers.
+
+class SSLHostState : public base::NonThreadSafe {
+ public:
+  SSLHostState();
+  ~SSLHostState();
+
+  // Records that a host has run insecure content.
+  void HostRanInsecureContent(const std::string& host, int pid);
+
+  // Returns whether the specified host ran insecure content.
+  bool DidHostRunInsecureContent(const std::string& host, int pid) const;
+
+  // Records that |cert| is permitted to be used for |host| in the future.
+  void DenyCertForHost(net::X509Certificate* cert, const std::string& host);
+
+  // Records that |cert| is not permitted to be used for |host| in the future.
+  void AllowCertForHost(net::X509Certificate* cert, const std::string& host);
+
+  // Queries whether |cert| is allowed or denied for |host|.
+  net::CertPolicy::Judgment QueryPolicy(
+      net::X509Certificate* cert, const std::string& host);
+
+ private:
+  // A BrokenHostEntry is a pair of (host, process_id) that indicates the host
+  // contains insecure content in that renderer process.
+  typedef std::pair<std::string, int> BrokenHostEntry;
+
+  // Hosts which have been contaminated with insecure content in the
+  // specified process.  Note that insecure content can travel between
+  // same-origin frames in one processs but cannot jump between processes.
+  std::set<BrokenHostEntry> ran_insecure_content_hosts_;
+
+  // Certificate policies for each host.
+  std::map<std::string, net::CertPolicy> cert_policy_for_host_;
+
+  DISALLOW_COPY_AND_ASSIGN(SSLHostState);
+};
+
+#endif  // CONTENT_BROWSER_SSL_SSL_HOST_STATE_H_