Support host-based deletion for SSLHostStateDelegate

content/public/browser/ssl_host_state_delegate.h

 // Copyright 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 CONTENT_PUBLIC_BROWSER_SSL_HOST_STATE_DELEGATE_H_
 #define CONTENT_PUBLIC_BROWSER_SSL_HOST_STATE_DELEGATE_H_
 
 #include <memory>
 
+#include "base/callback_forward.h"
 #include "base/memory/ref_counted.h"
 #include "base/threading/non_thread_safe.h"
 #include "content/common/content_export.h"
 #include "net/cert/x509_certificate.h"
 
 namespace content {
 
 // The SSLHostStateDelegate encapulates the host-specific state for SSL errors.
 // For example, SSLHostStateDelegate remembers whether the user has whitelisted
 // a particular broken cert for use with particular host.  We separate this
@@ skipping 24 matching lines @@
     // errors on an HTTPS page.
     CERT_ERRORS_CONTENT,
   };
 
   // Records that |cert| is permitted to be used for |host| in the future, for
   // a specified |error| type.
   virtual void AllowCert(const std::string&,
                          const net::X509Certificate& cert,
                          net::CertStatus error) = 0;
 
-  // Clear all allow preferences.
-  virtual void Clear() = 0;
+  // Clear allow preferences matched by |host_filter|. If the filter is null,
+  // clear all preferences.
+  virtual void Clear(
+      const base::Callback<bool(const std::string&)>& host_filter) = 0;
 
   // Queries whether |cert| is allowed for |host| and |error|. Returns true in
   // |expired_previous_decision| if a previous user decision expired immediately
   // prior to this query, otherwise false.
   virtual CertJudgment QueryPolicy(const std::string& host,
                                    const net::X509Certificate& cert,
                                    net::CertStatus error,
                                    bool* expired_previous_decision) = 0;
 
   // Records that a host has run insecure content of the given |content_type|.
@@ skipping 18 matching lines @@
   // error combination exception is allowed, use QueryPolicy().
   virtual bool HasAllowException(const std::string& host) const = 0;
 
  protected:
   virtual ~SSLHostStateDelegate() {}
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_SSL_HOST_STATE_DELEGATE_H_