Populate download_file_types proto and filter it for each platform

chrome/common/safe_browsing/download_protection_util.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 "chrome/common/safe_browsing/download_protection_util.h"
 
 #include <algorithm>
 
 #include "base/logging.h"
 #include "base/macros.h"
@@ skipping 264 matching lines @@
   EXTENSION_CDR,
   EXTENSION_DMGPART,
   EXTENSION_DVDR,
   EXTENSION_DART,
   EXTENSION_DC42,
   EXTENSION_DISKCOPY42,
   EXTENSION_IMGPART,
   EXTENSION_NDIF,
   EXTENSION_UDIF,
   EXTENSION_TOAST,
+  // NOTE!  If you modify this list, you should also update

[Lei Zhang, 2016/05/09 23:28:01]

Is is possible to enforce this with static_assert?

[Nathan Parker, 2016/05/10 17:33:51]

Done. I'm not actually comparing this list to the protobuf list, since the
latter already does contain more (a few were missing from here).

This list should go away in the next week or so.

+  // chrome/browser/resources/safe_browsing/download_file_types.asciipb
+
   // New values go above this one.
   EXTENSION_MAX
 };
 
 struct SafeBrowsingFiletype {
   const base::FilePath::CharType* const extension;
   int uma_value;
   bool is_supported_binary;
   bool is_archive;
 };
@@ skipping 347 matching lines @@
     return ClientDownloadRequest::ARCHIVE;
   return ClientDownloadRequest::WIN_EXECUTABLE;
 }
 
 int GetSBClientDownloadExtensionValueForUMA(const base::FilePath& file) {
   return GetFileType(file).uma_value;
 }
 
 }  // namespace download_protection_util
 }  // namespace safe_browsing