[Downloads] Allow acquiring dangerous download file.

content/browser/download/download_stats.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.
 
 #include "content/browser/download/download_stats.h"
 
 #include "base/metrics/histogram.h"
 #include "base/string_util.h"
 #include "content/browser/download/download_resource_handler.h"
 #include "content/public/browser/download_interrupt_reasons.h"
@@ skipping 127 matching lines @@
                                   -delta_bytes,
                                   1,
                                   kMaxKb,
                                   kBuckets);
     }
   }
 
   UMA_HISTOGRAM_BOOLEAN("Download.InterruptedUnknownSize", unknown_size);
 }
 
+void RecordDangerousDownloadAccept(DownloadDangerType danger_type) {
+  UMA_HISTOGRAM_ENUMERATION("Download.DangerousDownloadValidated",
+                            danger_type,
+                            DOWNLOAD_DANGER_TYPE_MAX);
+}
+
+void RecordDangerousDownloadDiscard(DownloadDiscardReason reason,
+                                    DownloadDangerType danger_type) {
+  switch (reason) {
+    case DOWNLOAD_DISCARD_DUE_TO_USER_ACTION:
+      UMA_HISTOGRAM_ENUMERATION(
+          "Download.UserDiscard", danger_type, DOWNLOAD_DANGER_TYPE_MAX);
+      break;
+    case DOWNLOAD_DISCARD_DUE_TO_SHUTDOWN:
+      UMA_HISTOGRAM_ENUMERATION(
+          "Download.Discard", danger_type, DOWNLOAD_DANGER_TYPE_MAX);
+      break;
+    default:
+      NOTREACHED();
+  }
+}
+
 void RecordDownloadWriteSize(size_t data_len) {
   RecordDownloadCount(WRITE_SIZE_COUNT);
   int max = 1024 * 1024;  // One Megabyte.
   UMA_HISTOGRAM_CUSTOM_COUNTS("Download.WriteSize", data_len, 1, max, 256);
 }
 
 void RecordDownloadWriteLoopCount(int count) {
   RecordDownloadCount(WRITE_LOOP_COUNT);
   UMA_HISTOGRAM_ENUMERATION("Download.WriteLoopCount", count, 20);
 }
@@ skipping 270 matching lines @@
                            disk_write_time_ms * 100 / elapsed_time_ms);
 }
 
 void RecordSavePackageEvent(SavePackageEvent event) {
   UMA_HISTOGRAM_ENUMERATION("Download.SavePackage",
                             event,
                             SAVE_PACKAGE_LAST_ENTRY);
 }
 
 }  // namespace content