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diff --git a/android_webview/browser/aw_ssl_host_state_delegate.h b/android_webview/browser/aw_ssl_host_state_delegate.h
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+++ b/android_webview/browser/aw_ssl_host_state_delegate.h
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+// Copyright (c) 2014 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 ANDROID_WEBVIEW_BROWSER_AW_SSL_HOST_STATE_DELEGATE_H_
+#define ANDROID_WEBVIEW_BROWSER_AW_SSL_HOST_STATE_DELEGATE_H_
+
+#include <map>
+#include <string>
+
+#include "content/public/browser/ssl_host_state_delegate.h"
+#include "net/base/hash_value.h"
+#include "net/cert/cert_status_flags.h"
+#include "net/cert/x509_certificate.h"
+
+namespace android_webview {
+
+namespace internal {
+// This class maintains the policy for storing actions on certificate errors.
+class CertPolicy {
+ public:
+  CertPolicy();
+  ~CertPolicy();
+  // Returns true if the user has decided to proceed through the ssl error
+  // before. For a certificate to be allowed, it must not have any
+  // *additional* errors from when it was allowed.
+  bool Check(const net::X509Certificate& cert, net::CertStatus error) const;
+
+  // Causes the policy to allow this certificate for a given |error|. And
+  // remember the user's choice.
+  void Allow(const net::X509Certificate& cert, net::CertStatus error);
+
+ private:
+  // The set of fingerprints of allowed certificates.
+  std::map<net::SHA256HashValue, net::CertStatus, net::SHA256HashValueLessThan>
+      allowed_;
+};
+
+}  // namespace internal
+
+class AwSSLHostStateDelegate : public content::SSLHostStateDelegate {
+ public:
+  AwSSLHostStateDelegate();
+  virtual ~AwSSLHostStateDelegate();
+
+  // Records that |cert| is permitted to be used for |host| in the future, for
+  // a specified |error| type.
+  void AllowCert(const std::string& host,
+                 const net::X509Certificate& cert,
+                 net::CertStatus error) override;
+
+  void Clear() override;
+
+  // Queries whether |cert| is allowed or denied for |host| and |error|.
+  content::SSLHostStateDelegate::CertJudgment QueryPolicy(
+      const std::string& host,
+      const net::X509Certificate& cert,
+      net::CertStatus error,
+      bool* expired_previous_decision) override;
+
+  // Records that a host has run insecure content.
+  void HostRanInsecureContent(const std::string& host, int pid) override;
+
+  // Returns whether the specified host ran insecure content.
+  bool DidHostRunInsecureContent(const std::string& host,
+                                 int pid) const override;
+
+ private:
+  // Certificate policies for each host.
+  std::map<std::string, internal::CertPolicy> cert_policy_for_host_;
+
+  DISALLOW_COPY_AND_ASSIGN(AwSSLHostStateDelegate);
+};
+
+}  // namespace android_webview
+
+#endif  // ANDROID_WEBVIEW_BROWSER_AW_SSL_HOST_STATE_DELEGATE_H_