[SafeBrowsing] Send pingbacks for additional file types.

chrome/browser/download/download_extensions.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 <set>
 #include <string>
 
 #include "chrome/browser/download/download_extensions.h"
 
 #include "base/strings/string_util.h"
@@ skipping 191 matching lines @@
     // Microsoft IIS Internet Communication Settings.
     {"ins", ALLOW_ON_USER_GESTURE, ALLOW_AUTO_OPEN},
 
     // Microsoft IIS Internet Service Provider Settings.
     {"isp", ALLOW_ON_USER_GESTURE, ALLOW_AUTO_OPEN},
 
     // JavaScript file. May open using Windows Script Host with user level
     // privileges.
     {"js", ALLOW_ON_USER_GESTURE, DISALLOW_AUTO_OPEN},
 
-    // JScript encoded script file.
+    // JScript encoded script file. Usually produced by running Microsoft Script
+    // Encoder over a .js file.
+    // See https://msdn.microsoft.com/library/d14c8zsc.aspx
     {"jse", ALLOW_ON_USER_GESTURE, DISALLOW_AUTO_OPEN},
 
     // Shortcuts. May open anything.
     {"lnk", ALLOW_ON_USER_GESTURE, DISALLOW_AUTO_OPEN},
 
     // .local files affect DLL search path for .exe file with same base name.
     {"local", DANGEROUS, ALLOW_AUTO_OPEN},
 
     // While being a generic name, having a .manifest file with the same
     // basename as .exe file (foo.exe + foo.exe.manifest) changes the dll search
@@ skipping 61 matching lines @@
     {"ps2xml", ALLOW_ON_USER_GESTURE, DISALLOW_AUTO_OPEN},
     {"psc1", ALLOW_ON_USER_GESTURE, DISALLOW_AUTO_OPEN},
     {"psc2", ALLOW_ON_USER_GESTURE, DISALLOW_AUTO_OPEN},
 
     // Registry file. Opening may cause registry settings to change. Users still
     // need to click through a prompt. So we could consider relaxing the
     // DISALLOW_AUTO_OPEN restriction.
     {"reg", ALLOW_ON_USER_GESTURE, DISALLOW_AUTO_OPEN},
 
     // Microsoft Windows Explorer Command.
+    // See https://support.microsoft.com/kb/190355 for an example.
     {"scf", ALLOW_ON_USER_GESTURE, ALLOW_AUTO_OPEN},
 
     // Microsoft Windows Screen Saver.
     {"scr", ALLOW_ON_USER_GESTURE, DISALLOW_AUTO_OPEN},
 
     // Microsoft Windows Script Component. Microsoft FoxPro Screen.
+    // A Script Component is a COM component created using script.
+    // See https://msdn.microsoft.com/library/aa233148.aspx for an example.
     {"sct", ALLOW_ON_USER_GESTURE, ALLOW_AUTO_OPEN},
 
     // Microsoft Windows Shortcut into a document.
+    // See https://support.microsoft.com/kb/212344
     {"shb", ALLOW_ON_USER_GESTURE, ALLOW_AUTO_OPEN},
 
     // Shell Scrap Object File.
     {"shs", ALLOW_ON_USER_GESTURE, ALLOW_AUTO_OPEN},
 
     // System executable. Windows tries hard to prevent you from opening these
     // types of files.
     {"sys", DANGEROUS, DISALLOW_AUTO_OPEN},
 
     // Internet Shortcut (new since IE9). Both .url and .website are .ini files
@@ skipping 109 matching lines @@
 
 DownloadDangerLevel GetFileDangerLevel(const base::FilePath& path) {
   return GetFileType(path).danger_level;
 }
 
 bool IsAllowedToOpenAutomatically(const base::FilePath& path) {
   return GetFileType(path).auto_open_hint == ALLOW_AUTO_OPEN;
 }
 
 }  // namespace download_util