Adding a DownloadRestrictions group policy.

chrome/common/pref_names.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/pref_names.h"
 
 #include "base/macros.h"
 #include "build/build_config.h"
 #include "chrome/common/features.h"
 #include "chrome/common/pref_font_webkit_names.h"
@@ skipping 57 matching lines @@
 // "noinstall" to disable them.  This property is usually set in the
 // master_preferences and copied into the profile preferences on first run.
 // Defaults apps are installed only when creating a new profile.
 const char kDefaultApps[] = "default_apps";
 
 // Disables screenshot accelerators and extension APIs.
 // This setting resides both in profile prefs and local state. Accelerator
 // handling code reads local state, while extension APIs use profile pref.
 const char kDisableScreenshots[] = "disable_screenshots";
 
+// Prevents certain types of downloads based on integer value, which corresponds
+// to DownloadPrefs::DownloadRestriction.
+// 0 - No special restrictions (default)
+// 1 - Block dangerous downloads
+// 2 - Block potentially dangerous downloads
+// 3 - Block all downloads
+const char kDownloadRestrictions[] = "download_restrictions";
+
 // If set to true profiles are created in ephemeral mode and do not store their
 // data in the profile folder on disk but only in memory.
 const char kForceEphemeralProfiles[] = "profile.ephemeral_mode";
 
 // A boolean specifying whether the New Tab page is the home page or not.
 const char kHomePageIsNewTabPage[] = "homepage_is_newtabpage";
 
 // This is the URL of the page to load when opening new tabs.
 const char kHomePage[] = "homepage";
 
@@ skipping 2469 matching lines @@
 // internal format (int64) in local store.  (I.e., this is not a per-profile
 // pref.)
 const char kClipboardLastModifiedTime[] = "ui.clipboard.last_modified_time";
 #endif
 
 #if BUILDFLAG(ENABLE_OFFLINE_PAGES)
 const char kOfflinePrefetchBackoff[] = "offline_prefetch.backoff";
 #endif
 
 }  // namespace prefs