Experience sampling insturmentation for SSL and Safe Browsing interstitials

chrome/browser/ssl/ssl_blocking_page.cc

Index: chrome/browser/ssl/ssl_blocking_page.cc
diff --git a/chrome/browser/ssl/ssl_blocking_page.cc b/chrome/browser/ssl/ssl_blocking_page.cc
index f7cc7d092415a58893f1b63a5193d63126f8e4e6..38fa707f544caa4cf22cba05c3051c8d3dcf0910 100644
--- a/chrome/browser/ssl/ssl_blocking_page.cc
+++ b/chrome/browser/ssl/ssl_blocking_page.cc
@@ -18,6 +18,7 @@
 #include "base/time/time.h"
 #include "base/values.h"
 #include "chrome/browser/chrome_notification_types.h"
+#include "chrome/browser/extensions/api/experience_sampling_private/experience_sampling.h"
 #include "chrome/browser/history/history_service_factory.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/renderer_preferences_util.h"
@@ -69,6 +70,7 @@ using base::TimeTicks;
 using content::InterstitialPage;
 using content::NavigationController;
 using content::NavigationEntry;
+using extensions::ExperienceSamplingEvent;
 
 namespace {
 
@@ -107,6 +109,11 @@ const char* GetTrialCondition() {
   return kCondV2;
 }
 
+// Constants for the Experience Sampling instrumentation.
+const char kEventNameBase[] = "ssl_interstitial_";
+const char kEventNotOverridable[] = "notoverridable_";
+const char kEventOverridable[] = "overridable_";
+
 // Events for UMA. Do not reorder or change!
 enum SSLBlockingPageEvent {
   SHOW_ALL,
@@ -362,6 +369,19 @@ SSLBlockingPage::SSLBlockingPage(
                  content::Source<Profile>(profile));
 #endif
 
+  // ExperienceSampling: Set up new sampling event for this interstitial.
+  std::string event_name(kEventNameBase);
+  if (overridable_ && !strict_enforcement_)
+    event_name.append(kEventOverridable);
+  else
+    event_name.append(kEventNotOverridable);
+  event_name.append(net::ErrorToString(cert_error_));
+  sampling_event_.reset(new ExperienceSamplingEvent(
+      event_name,
+      request_url_,
+      web_contents_->GetLastCommittedURL(),
+      web_contents_->GetBrowserContext()));
+
   interstitial_page_ = InterstitialPage::Create(
       web_contents_, true, request_url, this);
   interstitial_page_->Show();
@@ -681,6 +701,7 @@ void SSLBlockingPage::CommandReceived(const std::string& command) {
     }
     case CMD_MORE: {
       RecordSSLBlockingPageEventStats(MORE);
+      sampling_event_->has_viewed_details = true;
       break;
     }
     case CMD_RELOAD: {
@@ -691,6 +712,7 @@ void SSLBlockingPage::CommandReceived(const std::string& command) {
     case CMD_HELP: {
       content::NavigationController::LoadURLParams help_page_params(GURL(
           "https://support.google.com/chrome/answer/4454607"));
+      sampling_event_->has_viewed_learn_more = true;
       web_contents_->GetController().LoadURLWithParams(help_page_params);
       break;
     }
@@ -721,6 +743,8 @@ void SSLBlockingPage::OnProceed() {
                                      captive_portal_probe_completed_,
                                      captive_portal_no_response_,
                                      captive_portal_detected_);
+  // ExperienceSampling: Notify that user decided to proceed.
+  sampling_event_->CreateUserDecisionEvent(ExperienceSamplingEvent::kProceed);
   // Accepting the certificate resumes the loading of the page.
   NotifyAllowCertificate();
 }
@@ -735,6 +759,9 @@ void SSLBlockingPage::OnDontProceed() {
                                      captive_portal_probe_completed_,
                                      captive_portal_no_response_,
                                      captive_portal_detected_);
+  // ExperienceSampling: Notify that user decided to not proceed.
+  // This also occurs if the user navigates away or closes the tab.
+  sampling_event_->CreateUserDecisionEvent(ExperienceSamplingEvent::kDeny);
   NotifyDenyCertificate();
 }