Count number of origins with data affected by clearing "cookies and site data".

content/browser/storage_partition_impl.cc

Index: content/browser/storage_partition_impl.cc
diff --git a/content/browser/storage_partition_impl.cc b/content/browser/storage_partition_impl.cc
index 931e7447e917ce8f885e56cc2ab369c7ff96cbea..e4dbe31e01c70b2eeedaf547e0ad5b0291b1f82a 100644
--- a/content/browser/storage_partition_impl.cc
+++ b/content/browser/storage_partition_impl.cc
@@ -171,8 +171,10 @@ void OnSessionStorageUsageInfo(
   for (size_t i = 0; i < infos.size(); ++i) {
     if (!origin_matcher.is_null() &&
         !origin_matcher.Run(infos[i].origin, special_storage_policy.get())) {
+      LOG(ERROR) << "skip session storage: " << infos[i].origin;
       continue;
     }
+    LOG(ERROR) << "delete session storage: " << infos[i].origin;
     dom_storage_context->DeleteSessionStorage(infos[i]);
   }
 
@@ -721,7 +723,7 @@ StoragePartitionImpl::QuotaManagedDataDeletionHelper::ClearOriginsOnIOThread(
     callback.Run();
     return;
   }
-
+  for(auto origin: origins) LOG(ERROR) << origin.spec();
   size_t* deletion_task_count = new size_t(0u);
   (*deletion_task_count)++;
   for (std::set<GURL>::const_iterator origin = origins.begin();