Experience sampling insturmentation for SSL and Safe Browsing interstitials

chrome/browser/safe_browsing/safe_browsing_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.
 //
 // Classes for managing the SafeBrowsing interstitial pages.
 //
 // When a user is about to visit a page the SafeBrowsing system has deemed to
 // be malicious, either as malware or a phishing page, we show an interstitial
 // page with some options (go back, continue) to give the user a chance to avoid
 // the harmful page.
@@ skipping 35 matching lines @@
 namespace base {
 class DictionaryValue;
 class MessageLoop;
 }
 
 namespace content {
 class InterstitialPage;
 class WebContents;
 }
 
+namespace extensions {
+class SamplingEvent;
+}
+
 class SafeBrowsingBlockingPage : public content::InterstitialPageDelegate {
  public:
   typedef SafeBrowsingUIManager::UnsafeResource UnsafeResource;
   typedef std::vector<UnsafeResource> UnsafeResourceList;
   typedef std::map<content::WebContents*, UnsafeResourceList> UnsafeResourceMap;
 
   virtual ~SafeBrowsingBlockingPage();
 
   // Shows a blocking page warning the user about phishing/malware for a
   // specific resource.
@@ skipping 148 matching lines @@
 
   // The factory used to instanciate SafeBrowsingBlockingPage objects.
   // Usefull for tests, so they can provide their own implementation of
   // SafeBrowsingBlockingPage.
   static SafeBrowsingBlockingPageFactory* factory_;
 
   // How many times is this same URL in history? Used for histogramming.
   int num_visits_;
   base::CancelableTaskTracker request_tracker_;
 
+ private:
+  scoped_ptr<extensions::SamplingEvent> sampling_event_;
+
   DISALLOW_COPY_AND_ASSIGN(SafeBrowsingBlockingPage);
 };
 
 class SafeBrowsingBlockingPageV1 : public SafeBrowsingBlockingPage {
  public:
   // Don't instanciate this class directly, use ShowBlockingPage instead.
   SafeBrowsingBlockingPageV1(SafeBrowsingUIManager* ui_manager,
                              content::WebContents* web_contents,
                              const UnsafeResourceList& unsafe_resources);
 
@@ skipping 74 matching lines @@
  public:
   virtual ~SafeBrowsingBlockingPageFactory() { }
 
   virtual SafeBrowsingBlockingPage* CreateSafeBrowsingPage(
       SafeBrowsingUIManager* ui_manager,
       content::WebContents* web_contents,
       const SafeBrowsingBlockingPage::UnsafeResourceList& unsafe_resources) = 0;
 };
 
 #endif  // CHROME_BROWSER_SAFE_BROWSING_SAFE_BROWSING_BLOCKING_PAGE_H_