Record time to navigation/tab-closed after HTTP-bad warning

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 471ace912fbca302dc854893b45ea5686bb843c3..561722cb73a3fc248aec2c1dc2c4b47f3022c49e 100644
--- a/chrome/browser/ssl/chrome_security_state_model_client.h
+++ b/chrome/browser/ssl/chrome_security_state_model_client.h
@@ -37,8 +37,11 @@ class ChromeSecurityStateModelClient
   void VisibleSecurityStateChanged();
 
   // content::WebContentsObserver:
+  void DidStartNavigation(
+      content::NavigationHandle* navigation_handle) override;
   void DidFinishNavigation(
       content::NavigationHandle* navigation_handle) override;
+  void WebContentsDestroyed() override;
 
   // Returns the SecurityStyle that should be applied to a WebContents
   // with the given |security_info|. Populates
@@ -67,6 +70,13 @@ class ChromeSecurityStateModelClient
   // navigation.
   bool logged_http_warning_on_current_navigation_;
 
+  // The time that a console or omnibox warning was shown for insecure
+  // HTTP pages that contain password or credit card fields. This is set
+  // at most once per main-frame navigation (the first that an HTTP
+  // warning triggers on that navigation) and is used for UMA
+  // histogramming.
+  base::Time time_of_http_warning_on_current_navigation_;
+
   DISALLOW_COPY_AND_ASSIGN(ChromeSecurityStateModelClient);
 };