Switch SecurityStateModel ownership to ChromeSecurityStateModelClient

chrome/browser/ssl/chrome_security_state_model_client.h

Index: chrome/browser/ssl/chrome_security_state_model_client.h
diff --git a/chrome/browser/ssl/chrome_security_state_model_client.h b/chrome/browser/ssl/chrome_security_state_model_client.h
index 4889b9c3217ec254763327ec3c6a308e1273fbfa..7298ff27088cca32a41a2920df07112cdf7d97bc 100644
--- a/chrome/browser/ssl/chrome_security_state_model_client.h
+++ b/chrome/browser/ssl/chrome_security_state_model_client.h
@@ -6,7 +6,9 @@
 #define CHROME_BROWSER_SSL_CHROME_SECURITY_STATE_MODEL_CLIENT_H_
 
 #include "base/macros.h"
+#include "chrome/browser/ssl/security_state_model.h"
 #include "chrome/browser/ssl/security_state_model_client.h"
+#include "content/public/browser/web_contents_user_data.h"
 
 namespace content {
 class WebContents;
@@ -14,17 +16,24 @@ class WebContents;
 
 // Uses a WebContents to provide a SecurityStateModel with the
 // information that it needs to determine the page's security status.
-class ChromeSecurityStateModelClient : public SecurityStateModelClient {
+class ChromeSecurityStateModelClient
+    : public SecurityStateModelClient,
+      public content::WebContentsUserData<ChromeSecurityStateModelClient> {
  public:
-  explicit ChromeSecurityStateModelClient(content::WebContents* web_contents);
   ~ChromeSecurityStateModelClient() override;
 
+  const SecurityStateModel::SecurityInfo& GetSecurityInfo() const;
+
   // SecurityStateModelClient:
   bool RetrieveCert(scoped_refptr<net::X509Certificate>* cert) override;
   bool UsedPolicyInstalledCertificate() override;
 
  private:
+  explicit ChromeSecurityStateModelClient(content::WebContents* web_contents);
+  friend class content::WebContentsUserData<ChromeSecurityStateModelClient>;
+
   content::WebContents* web_contents_;
+  scoped_ptr<SecurityStateModel> security_state_model_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeSecurityStateModelClient);
 };