Experience sampling insturmentation for SSL and Safe Browsing interstitials

chrome/browser/ssl/ssl_blocking_page.h

 // Copyright (c) 2012 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_SSL_BLOCKING_PAGE_H_
 #define CHROME_BROWSER_SSL_SSL_BLOCKING_PAGE_H_
 
 #include <string>
 #include <vector>
 
 #include "base/callback.h"
 #include "base/strings/string16.h"
 #include "base/task/cancelable_task_tracker.h"
 #include "base/time/time.h"
 #include "chrome/browser/history/history_service.h"
 #include "content/public/browser/interstitial_page_delegate.h"
 #include "net/ssl/ssl_info.h"
 #include "url/gurl.h"
 
 namespace base {
 class DictionaryValue;
 }
 
 namespace content {
 class InterstitialPage;
 class WebContents;
 }
 
+namespace extensions {
+class SamplingEvent;
+}
+
 // This class is responsible for showing/hiding the interstitial page that is
 // shown when a certificate error happens.
 // It deletes itself when the interstitial page is closed.
 //
 // This class should only be used on the UI thread because its implementation
 // uses captive_portal::CaptivePortalService which can only be accessed on the
 // UI thread.
 class SSLBlockingPage : public content::InterstitialPageDelegate,
                         public content::NotificationObserver {
  public:
@@ skipping 76 matching lines @@
   // Did the probe complete before the interstitial was closed?
   bool captive_portal_probe_completed_;
   // Did the captive portal probe receive an error or get a non-HTTP response?
   bool captive_portal_no_response_;
   // Was a captive portal detected?
   bool captive_portal_detected_;
 
   // For the FieldTrial: this contains the name of the condition.
   std::string trial_condition_;
 
+  // For Chrome Experience Sampling Platform: this maintains event state.
+  scoped_ptr<extensions::SamplingEvent> sampling_event_;
+
   content::NotificationRegistrar registrar_;
 
   DISALLOW_COPY_AND_ASSIGN(SSLBlockingPage);
 };
 
 #endif  // CHROME_BROWSER_SSL_SSL_BLOCKING_PAGE_H_