[Extensions] Remove FeatureSwitch::easy_off_store_install

chrome/browser/download/download_target_determiner.cc

 // Copyright 2013 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/download/download_target_determiner.h"
 
 #include "base/location.h"
 #include "base/rand_util.h"
 #include "base/single_thread_task_runner.h"
 #include "base/strings/stringprintf.h"
@@ skipping 867 matching lines @@
 
   // User-initiated extension downloads from pref-whitelisted sources are not
   // considered dangerous.
   if (download_->HasUserGesture() &&
       is_extension_download &&
       download_crx_util::OffStoreInstallAllowedByPrefs(
           GetProfile(), *download_)) {
     return DownloadFileType::NOT_DANGEROUS;
   }
 
-#if BUILDFLAG(ENABLE_EXTENSIONS)
-  // Extensions that are not from the gallery are considered dangerous.
-  // When off-store install is disabled we skip this, since in this case, we
-  // will not offer to install the extension.
-  if (extensions::FeatureSwitch::easy_off_store_install()->IsEnabled() &&
-      is_extension_download &&
-      !extensions::WebstoreInstaller::GetAssociatedApproval(*download_)) {
-    return DownloadFileType::ALLOW_ON_USER_GESTURE;
-  }
-#endif
-
   // Anything the user has marked auto-open is OK if it's user-initiated.
   if (download_prefs_->IsAutoOpenEnabledBasedOnExtension(virtual_path_) &&
       download_->HasUserGesture())
     return DownloadFileType::NOT_DANGEROUS;
 
   DownloadFileType::DangerLevel danger_level =
       safe_browsing::FileTypePolicies::GetInstance()->GetFileDangerLevel(
           virtual_path_.BaseName());
 
   // A danger level of ALLOW_ON_USER_GESTURE is used to label potentially
@@ skipping 42 matching lines @@
     const base::FilePath& suggested_path) {
   return base::FilePath(suggested_path.value() + kCrdownloadSuffix);
 }
 
 #if defined(OS_WIN)
 // static
 bool DownloadTargetDeterminer::IsAdobeReaderUpToDate() {
   return g_is_adobe_reader_up_to_date_;
 }
 #endif