Add UMA for autoblocking and embargoing.

chrome/browser/permissions/permission_decision_auto_blocker.cc

Index: chrome/browser/permissions/permission_decision_auto_blocker.cc
diff --git a/chrome/browser/permissions/permission_decision_auto_blocker.cc b/chrome/browser/permissions/permission_decision_auto_blocker.cc
index 97834772a53a020cf6ae1aa3ad7c76d6e52b7bb1..21696562a4be615aca38e385bb6da51c3c2c2498 100644
--- a/chrome/browser/permissions/permission_decision_auto_blocker.cc
+++ b/chrome/browser/permissions/permission_decision_auto_blocker.cc
@@ -4,6 +4,8 @@
 
 #include "chrome/browser/permissions/permission_decision_auto_blocker.h"
 
+#include <string.h>
+
 #include <memory>
 
 #include "base/feature_list.h"
@@ -14,6 +16,7 @@
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/content_settings/host_content_settings_map_factory.h"
 #include "chrome/browser/permissions/permission_blacklist_client.h"
+#include "chrome/browser/permissions/permission_uma_util.h"
 #include "chrome/browser/permissions/permission_util.h"
 #include "chrome/browser/profiles/incognito_helpers.h"
 #include "chrome/browser/profiles/profile.h"
@@ -113,6 +116,20 @@ int GetActionCount(const GURL& url,
   return current_count;
 }
 
+// Returns true if |url| has been embargoed from requesting |permission| for the
+// reason corresponding to |key|.
+bool WasPreviouslyEmbargoed(Profile* profile,
+                            const GURL& url,
+                            content::PermissionType permission,
+                            const char* key) {
+  HostContentSettingsMap* map =
+      HostContentSettingsMapFactory::GetForProfile(profile);
+  std::unique_ptr<base::DictionaryValue> dict = GetOriginDict(map, url);
+  base::DictionaryValue* permission_dict = GetOrCreatePermissionDict(
+      dict.get(), PermissionUtil::GetPermissionString(permission));
+  return permission_dict->HasKey(key);
+}
+
 }  // namespace
 
 // PermissionDecisionAutoBlocker::Factory --------------------------------------
@@ -227,6 +244,12 @@ bool PermissionDecisionAutoBlocker::RecordDismissAndEmbargo(
 
   if (base::FeatureList::IsEnabled(features::kBlockPromptsIfDismissedOften) &&
       current_dismissal_count >= g_prompt_dismissals_before_block) {
+    if (WasPreviouslyEmbargoed(profile_, url, permission,
+                               kPermissionDismissalEmbargoKey)) {
+      PermissionUmaUtil::RecordRepeatedEmbargo(
+          PermissionEmbargoReason::REPEATED_DISMISSALS);
+    }
+
     PlaceUnderEmbargo(permission, url, kPermissionDismissalEmbargoKey);
     return true;
   }
@@ -341,12 +364,17 @@ void PermissionDecisionAutoBlocker::CheckSafeBrowsingResult(
     base::Callback<void(bool)> callback,
     bool should_be_embargoed) {
   if (should_be_embargoed) {
-    // Requesting site is blacklisted for this permission, update the content
-    // setting to place it under embargo.
+    if (WasPreviouslyEmbargoed(profile_, request_origin, permission,
+                               kPermissionBlacklistEmbargoKey)) {
+      PermissionUmaUtil::RecordRepeatedEmbargo(
+          PermissionEmbargoReason::PERMISSIONS_BLACKLISTING);
+    }
+
     PlaceUnderEmbargo(permission, request_origin,
                       kPermissionBlacklistEmbargoKey);
   }
-  callback.Run(should_be_embargoed /* permission blocked */);
+
+  callback.Run(should_be_embargoed);
 }
 
 // static
@@ -364,6 +392,11 @@ void PermissionDecisionAutoBlocker::PlaceUnderEmbargo(
   map->SetWebsiteSettingDefaultScope(
       request_origin, GURL(), CONTENT_SETTINGS_TYPE_PROMPT_NO_DECISION_COUNT,
       std::string(), std::move(dict));
+  PermissionEmbargoReason embargo_reason =
+      PermissionEmbargoReason::PERMISSIONS_BLACKLISTING;
+  if (std::strcmp(key, kPermissionDismissalEmbargoKey) == 0)
+    embargo_reason = PermissionEmbargoReason::REPEATED_DISMISSALS;
+  PermissionUmaUtil::RecordPermissionEmbargoReason(embargo_reason);
 }
 
 void PermissionDecisionAutoBlocker::