Experience sampling insturmentation for SSL and Safe Browsing interstitials

chrome/browser/safe_browsing/safe_browsing_blocking_page.cc

Index: chrome/browser/safe_browsing/safe_browsing_blocking_page.cc
diff --git a/chrome/browser/safe_browsing/safe_browsing_blocking_page.cc b/chrome/browser/safe_browsing/safe_browsing_blocking_page.cc
index 81c3f2a116fdd9cee692ebffd320a0c4f6fadf70..2d73872c8d0f6e2c3c4ea1cdbde515374dcff7fc 100644
--- a/chrome/browser/safe_browsing/safe_browsing_blocking_page.cc
+++ b/chrome/browser/safe_browsing/safe_browsing_blocking_page.cc
@@ -22,6 +22,7 @@
 #include "base/time/time.h"
 #include "base/values.h"
 #include "chrome/browser/browser_process.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"
@@ -53,6 +54,7 @@ using content::InterstitialPage;
 using content::OpenURLParams;
 using content::Referrer;
 using content::WebContents;
+using extensions::SamplingEvent;
 
 namespace {
 
@@ -114,6 +116,13 @@ const char kNavigatedAwayMetaCommand[] = "closed";
 const char kBoxChecked[] = "boxchecked";
 const char kDisplayCheckBox[] = "displaycheckbox";
 
+// Constants for the Experience Sampling instrumentation.
+const char kEventNameMalware[] = "safebrowsing_interstitial_";
+const char kEventNamePhishing[] = "phishing_interstitial_";
+const char kEventNameMalwareAndPhishing[] =
+    "malware_and_phishing_interstitial_";
+const char kEventNameOther[] = "safebrowsing_other_instertitial_";
+
 base::LazyInstance<SafeBrowsingBlockingPage::UnsafeResourceMap>
     g_unsafe_resource_map = LAZY_INSTANCE_INITIALIZER;
 
@@ -310,6 +319,29 @@ SafeBrowsingBlockingPage::SafeBrowsingBlockingPage(
         ui_manager_, web_contents, unsafe_resources[0]);
   }
 
+  // ExperienceSampling: Set up new sampling event for this interstitial.
+  // This needs to handle all types of warnings this insterstitial can show.
+  std::string event_name;
+  switch (interstitial_type_) {
+    case TYPE_MALWARE_AND_PHISHING:
+      event_name = kEventNameMalwareAndPhishing;
+      break;
+    case TYPE_MALWARE:
+      event_name = kEventNameMalware;
+      break;
+    case TYPE_PHISHING:
+      event_name = kEventNamePhishing;
+      break;
+    default:
+      event_name = kEventNameOther;
+      break;
+  }
+  sampling_event_.reset(new SamplingEvent(
+      event_name,
+      url_,
+      web_contents_->GetLastCommittedURL(),
+      web_contents_->GetBrowserContext()));
+
   interstitial_page_ = InterstitialPage::Create(
       web_contents, IsMainPageLoadBlocked(unsafe_resources), url_, this);
 }
@@ -353,6 +385,8 @@ void SafeBrowsingBlockingPage::CommandReceived(const std::string& cmd) {
       NOTREACHED();
     }
 
+    sampling_event_->has_viewed_learn_more = true;
+
     OpenURLParams params(
         url, Referrer(), CURRENT_TAB, content::PAGE_TRANSITION_LINK, false);
     web_contents_->OpenURL(params);
@@ -373,6 +407,8 @@ void SafeBrowsingBlockingPage::CommandReceived(const std::string& cmd) {
       NOTREACHED();
     }
 
+    sampling_event_->has_viewed_learn_more = true;
+
     OpenURLParams params(
         url, Referrer(), CURRENT_TAB, content::PAGE_TRANSITION_LINK, false);
     web_contents_->OpenURL(params);
@@ -486,6 +522,9 @@ void SafeBrowsingBlockingPage::CommandReceived(const std::string& cmd) {
     // User expanded the "see more info" section of the page.  We don't actually
     // do any action based on this, it's just so that RecordUserReactionTime can
     // track it.
+
+    // ExperienceSampling: We track that the user expanded the details.
+    sampling_event_->has_viewed_details = true;
     return;
   }
 
@@ -549,6 +588,9 @@ void SafeBrowsingBlockingPage::OnProceed() {
     unsafe_resource_map->erase(iter);
   }
 
+  // ExperienceSampling: Notify that user decided to proceed.
+  sampling_event_->CreateUserDecisionEvent(SamplingEvent::kProceed);
+
   // Now that this interstitial is gone, we can show the new one.
   if (blocking_page)
     blocking_page->interstitial_page_->Show();
@@ -592,6 +634,10 @@ void SafeBrowsingBlockingPage::OnDontProceed() {
         navigation_entry_index_to_remove_));
     navigation_entry_index_to_remove_ = -1;
   }
+
+  // ExperienceSampling: Notify that user decided to go back.
+  // This also occurs if the user navigates away or closes the tab.
+  sampling_event_->CreateUserDecisionEvent(SamplingEvent::kDeny);
 }
 
 void SafeBrowsingBlockingPage::OnGotHistoryCount(bool success,