Refactor SecurityStateModel/Clients for simplicity and reusability.

components/security_state/core/security_state_model.h

Index: components/security_state/core/security_state_model.h
diff --git a/components/security_state/security_state_model.h b/components/security_state/core/security_state_model.h
similarity index 93%
rename from components/security_state/security_state_model.h
rename to components/security_state/core/security_state_model.h
index 235c6b5e224211fe15b3e8b59c893d6fda2f05e4..252c892052ee350f2ad6b036c2ccda710c8d3f26 100644
--- a/components/security_state/security_state_model.h
+++ b/components/security_state/core/security_state_model.h
@@ -6,6 +6,7 @@
 #define COMPONENTS_SECURITY_STATE_SECURITY_STATE_MODEL_H_
 
 #include <stdint.h>
+#include <memory>
 
 #include "base/macros.h"
 #include "net/cert/cert_status_flags.h"
@@ -15,7 +16,8 @@
 
 namespace security_state {
 
-class SecurityStateModelClient;
+// Returns true if the given |url|'s origin should be considered secure.
+bool IsOriginSecure(const GURL& url);
 
 // SecurityStateModel provides high-level security information about a
 // page or request.
@@ -144,7 +146,7 @@ class SecurityStateModel {
 
   // Contains the security state relevant to computing the SecurityInfo
   // for a page. This is the input to GetSecurityInfo() provided by the
-  // model's client.
+  // model's user.
   struct VisibleSecurityState {
     VisibleSecurityState();
     ~VisibleSecurityState();
@@ -195,13 +197,15 @@ class SecurityStateModel {
   virtual ~SecurityStateModel();
 
   // Populates |result| to describe the current page.
-  void GetSecurityInfo(SecurityInfo* result) const;
-
-  void SetClient(SecurityStateModelClient* client);
+  // |visible_security_state| contains the relevant security state.
+  // |used_policy_installed_certificate| indicates whether the page or request
+  // is known to be loaded with a certificate installed by the system admin.
+  void GetSecurityInfo(
+      SecurityInfo* result,
+      std::unique_ptr<VisibleSecurityState> visible_security_state,
+      bool used_policy_installed_certificate) const;
 
  private:
-  SecurityStateModelClient* client_;
-
   DISALLOW_COPY_AND_ASSIGN(SecurityStateModel);
 };