Refactor SecurityStateModel/Clients for simplicity and reusability.

components/security_state/security_state_model_client.h

-// 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.
-
-#ifndef COMPONENTS_SECURITY_STATE_SECURITY_STATE_MODEL_CLIENT_H_
-#define COMPONENTS_SECURITY_STATE_SECURITY_STATE_MODEL_CLIENT_H_
-
-#include "base/macros.h"
-#include "base/memory/ref_counted.h"
-#include "components/security_state/security_state_model.h"
-#include "net/cert/cert_status_flags.h"
-
-namespace net {
-class X509Certificate;
-}  // namespace net
-
-namespace security_state {
-
-// Provides embedder-specific information that a SecurityStateModel
-// needs to determine the page's security status.
-class SecurityStateModelClient {
- public:
-  SecurityStateModelClient() {}
-  virtual ~SecurityStateModelClient() {}
-
-  // Retrieves the visible security state that is relevant to the
-  // SecurityStateModel.
-  virtual void GetVisibleSecurityState(
-      SecurityStateModel::VisibleSecurityState* state) = 0;
-
-  // Returns true if the page or request is known to be loaded with a
-  // certificate installed by the system administrator.
-  virtual bool UsedPolicyInstalledCertificate() = 0;
-
-  // Returns true if the given |url|'s origin should be considered secure.
-  virtual bool IsOriginSecure(const GURL& url) = 0;
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(SecurityStateModelClient);
-};
-
-}  // namespace security_state
-
-#endif  // COMPONENTS_SECURITY_STATE_SECURITY_STATE_MODEL_CLIENT_H_