Experience sampling insturmentation for SSL and Safe Browsing interstitials

chrome/browser/ssl/ssl_blocking_page.h

Index: chrome/browser/ssl/ssl_blocking_page.h
diff --git a/chrome/browser/ssl/ssl_blocking_page.h b/chrome/browser/ssl/ssl_blocking_page.h
index f9782cd65c3433ab2474f7a11b8e0e15928666d7..394b56ae75c6d28fb066f58d530b25a9dadaaea3 100644
--- a/chrome/browser/ssl/ssl_blocking_page.h
+++ b/chrome/browser/ssl/ssl_blocking_page.h
@@ -26,6 +26,10 @@ class InterstitialPage;
 class WebContents;
 }
 
+namespace extensions {
+class ExperienceSamplingEvent;
+}
+
 // 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.
@@ -122,6 +126,9 @@ class SSLBlockingPage : public content::InterstitialPageDelegate,
   // 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::ExperienceSamplingEvent> sampling_event_;
+
   content::NotificationRegistrar registrar_;
 
   DISALLOW_COPY_AND_ASSIGN(SSLBlockingPage);