Refactor connection_security into SecurityStateModel

chrome/browser/ssl/connection_security.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 CHROME_BROWSER_SSL_CONNECTION_SECURITY_H_
-#define CHROME_BROWSER_SSL_CONNECTION_SECURITY_H_
-
-#include "base/macros.h"
-#include "content/public/common/security_style.h"
-#include "net/cert/cert_status_flags.h"
-
-namespace content {
-class WebContents;
-}  // namespace content
-
-// This namespace contains functions responsible for computing the
-// connection security status of a page.
-namespace connection_security {
-
-// These security styles describe the treatment given to pages that
-// display and run mixed content. They are used to coordinate the
-// treatment of mixed content with other security UI elements.
-const content::SecurityStyle kDisplayedInsecureContentStyle =
-    content::SECURITY_STYLE_UNAUTHENTICATED;
-const content::SecurityStyle kRanInsecureContentStyle =
-    content::SECURITY_STYLE_AUTHENTICATION_BROKEN;
-
-// TODO(wtc): unify this enum with SecurityStyle.  We
-// don't need two sets of security UI levels.  SECURITY_STYLE_AUTHENTICATED
-// needs to be refined into three levels: warning, standard, and EV.
-// See crbug.com/425728
-//
-// If you reorder, add, or delete values from this enum, you must also
-// update the UI icons in ToolbarModelImpl::GetIconForSecurityLevel.
-//
-// A Java counterpart will be generated for this enum.
-// GENERATED_JAVA_ENUM_PACKAGE: org.chromium.chrome.browser.ssl
-// GENERATED_JAVA_CLASS_NAME_OVERRIDE: ConnectionSecurityLevel
-enum SecurityLevel {
-  // HTTP/no URL
-  NONE,
-
-  // HTTPS with valid EV cert
-  EV_SECURE,
-
-  // HTTPS (non-EV)
-  SECURE,
-
-  // HTTPS, but unable to check certificate revocation status or with insecure
-  // content on the page
-  SECURITY_WARNING,
-
-  // HTTPS, but the certificate verification chain is anchored on a
-  // certificate that was installed by the system administrator
-  SECURITY_POLICY_WARNING,
-
-  // Attempted HTTPS and failed, page not authenticated
-  SECURITY_ERROR,
-};
-
-// Describes how the SHA1 deprecation policy applies to an HTTPS
-// connection.
-enum SHA1DeprecationStatus {
-  // No SHA1 deprecation policy applies.
-  NO_DEPRECATED_SHA1,
-  // The connection used a certificate with a SHA1 signature in the
-  // chain, and policy says that the connection should be treated as
-  // broken HTTPS.
-  DEPRECATED_SHA1_BROKEN,
-  // The connection used a certificate with a SHA1 signature in the
-  // chain, and policy says that the connection should be treated with a
-  // warning.
-  DEPRECATED_SHA1_WARNING,
-};
-
-// Describes the type of mixed content (if any) that a site
-// displayed/ran.
-enum MixedContentStatus {
-  NO_MIXED_CONTENT,
-  // The site displayed nonsecure resources (passive mixed content).
-  DISPLAYED_MIXED_CONTENT,
-  // The site ran nonsecure resources (active mixed content).
-  RAN_MIXED_CONTENT,
-  // The site both ran and displayed nonsecure resources.
-  RAN_AND_DISPLAYED_MIXED_CONTENT,
-};
-
-// Contains information about a page's security status, including a
-// SecurityStyle and the information that was used to decide which
-// SecurityStyle to assign.
-struct SecurityInfo {
-  content::SecurityStyle security_style;
-  SHA1DeprecationStatus sha1_deprecation_status;
-  MixedContentStatus mixed_content_status;
-  net::CertStatus cert_status;
-  bool scheme_is_cryptographic;
-};
-
-// Returns a security level describing the overall security state of
-// the given |WebContents|.
-SecurityLevel GetSecurityLevelForWebContents(
-    const content::WebContents* web_contents);
-
-// Populates |security_info| with information describing the given
-// |web_contents|, including a content::SecurityStyle value and security
-// properties that caused that value to be chosen.
-//
-// Note: This is a lossy operation. Not all of the policies
-// that can be expressed by a SecurityLevel (a //chrome concept) can
-// be expressed by a content::SecurityStyle.
-// In general, code in //chrome should prefer to use
-// GetSecurityLevelForWebContents() to determine security policy, and
-// only use this function when policy needs to be supplied back to
-// layers in //content.
-void GetSecurityInfoForWebContents(const content::WebContents* web_contents,
-                                   SecurityInfo* security_info);
-
-}  // namespace connection_security
-
-#endif  // CHROME_BROWSER_SSL_CONNECTION_SECURITY_H_