[SafeBrowsing] Alternate extensions should also be subject to block list.

chrome/browser/safe_browsing/unverified_download_field_trial.cc

 // Copyright 2015 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 "chrome/browser/safe_browsing/unverified_download_field_trial.h"
 
 #include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/metrics/field_trial.h"
-#include "base/metrics/histogram.h"
 #include "base/strings/string_split.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "build/build_config.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/safe_browsing/download_protection_util.h"
 #include "components/variations/variations_associated_data.h"
 
 namespace safe_browsing {
 
@@ skipping 73 matching lines @@
     if (parameters.count(kUnverifiedDownloadFieldTrialBlockSBTypesParam) &&
         !parameters[kUnverifiedDownloadFieldTrialBlockSBTypesParam].empty() &&
         download_protection_util::IsSupportedBinaryFile(file))
       return false;
   }
 
   return true;
 }
 
 }  // namespace safe_browsing