Add Rappor metrics for Safe Browsing and SSL 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 0515ecd840fd7f5bc6a071cc32795f5bb1f5f1f1..dcacf42c6ec7bf157a98057ba6a5f259e2296195 100644
--- a/chrome/browser/safe_browsing/safe_browsing_blocking_page.cc
+++ b/chrome/browser/safe_browsing/safe_browsing_blocking_page.cc
@@ -176,8 +176,8 @@ SafeBrowsingBlockingPage::SafeBrowsingBlockingPage(
 
   // This must be done after calculating |interstitial_reason_| above.
   uma_helper_.reset(new SecurityInterstitialUmaHelper(
-      web_contents, request_url(),
-      GetHistogramPrefix(), GetSamplingEventName()));
+      web_contents, request_url(), GetUmaHistogramPrefix(),
+      GetRapporMetricPrefix(), GetSamplingEventName()));
   uma_helper_->RecordUserDecision(SecurityInterstitialUmaHelper::SHOW);
   uma_helper_->RecordUserInteraction(
       SecurityInterstitialUmaHelper::TOTAL_VISITS);
@@ -555,7 +555,7 @@ bool SafeBrowsingBlockingPage::IsMainPageLoadBlocked(
   return unsafe_resources.size() == 1 && !unsafe_resources[0].is_subresource;
 }
 
-std::string SafeBrowsingBlockingPage::GetHistogramPrefix() const {
+std::string SafeBrowsingBlockingPage::GetUmaHistogramPrefix() const {
   switch (interstitial_reason_) {
     case SB_REASON_MALWARE:
       return "malware";
@@ -568,6 +568,19 @@ std::string SafeBrowsingBlockingPage::GetHistogramPrefix() const {
   return std::string();
 }
 
+std::string SafeBrowsingBlockingPage::GetRapporMetricPrefix() 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();
+}
+
 std::string SafeBrowsingBlockingPage::GetSamplingEventName() const {
   switch (interstitial_reason_) {
     case SB_REASON_MALWARE: