Record SB subresource metrics separately from non-subresource metrics

chrome/browser/safe_browsing/safe_browsing_blocking_page.cc

 // 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.
 //
 // Implementation of the SafeBrowsingBlockingPage class.
 
 #include "chrome/browser/safe_browsing/safe_browsing_blocking_page.h"
 
 #include <string>
 
@@ skipping 141 matching lines @@
   if (malware)
     interstitial_reason_ = SB_REASON_MALWARE;
   else if (harmful)
     interstitial_reason_ = SB_REASON_HARMFUL;
   else
     interstitial_reason_ = SB_REASON_PHISHING;
 
   // This must be done after calculating |interstitial_reason_| above.
   // Use same prefix for UMA as for Rappor.
   set_metrics_helper(new SecurityInterstitialMetricsHelper(
-      web_contents, request_url(), GetMetricPrefix(), GetMetricPrefix(),
+      web_contents, request_url(), GetMetricPrefix(), GetRapporPrefix(),
       SecurityInterstitialMetricsHelper::REPORT_RAPPOR,
       GetSamplingEventName()));
   metrics_helper()->RecordUserDecision(SecurityInterstitialMetricsHelper::SHOW);
   metrics_helper()->RecordUserInteraction(
       SecurityInterstitialMetricsHelper::TOTAL_VISITS);
   if (IsPrefEnabled(prefs::kSafeBrowsingProceedAnywayDisabled)) {
     metrics_helper()->RecordUserDecision(
         SecurityInterstitialMetricsHelper::PROCEEDING_DISABLED);
   }
 
@@ skipping 313 matching lines @@
   if (unsafe_resources[0].threat_type ==
       SB_THREAT_TYPE_CLIENT_SIDE_PHISHING_URL) {
     return false;
   }
 
   // Otherwise, check the threat type.
   return unsafe_resources.size() == 1 && !unsafe_resources[0].is_subresource;
 }
 
 std::string SafeBrowsingBlockingPage::GetMetricPrefix() const {
+  bool primary_subresource = unsafe_resources_[0].is_subresource;
+  switch (interstitial_reason_) {
+    case SB_REASON_MALWARE:
+      return primary_subresource ? "malware_subresource" : "malware";
+    case SB_REASON_HARMFUL:
+      return primary_subresource ? "harmful_subresource" : "harmful";
+    case SB_REASON_PHISHING:
+      return primary_subresource ? "phishing_subresource" : "phishing";
+  }
+  NOTREACHED();
+  return std::string();
+}
+
+std::string SafeBrowsingBlockingPage::GetRapporPrefix() const {
   switch (interstitial_reason_) {
     case SB_REASON_MALWARE:
       return "malware";
     case SB_REASON_HARMFUL:
       return "harmful";
     case SB_REASON_PHISHING:
       return "phishing";
   }
   NOTREACHED();
   return std::string();
@@ skipping 129 matching lines @@
   load_time_data->SetString(
       "explanationParagraph",
       l10n_util::GetStringFUTF16(IDS_PHISHING_V3_EXPLANATION_PARAGRAPH,
                                  GetFormattedHostName()));
   load_time_data->SetString(
       "finalParagraph",
       l10n_util::GetStringUTF16(IDS_PHISHING_V3_PROCEED_PARAGRAPH));
 
   PopulateExtendedReportingOption(load_time_data);
 }