Remove the kEasyOffStoreInstall switch

extensions/common/switches.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 "extensions/common/switches.h"
 
 namespace extensions {
 
 namespace switches {
 
 // Allows non-https URL for background_page for hosted apps.
 const char kAllowHTTPBackgroundPage[] = "allow-http-background-page";
 
 // Allows the browser to load extensions that lack a modern manifest when that
 // would otherwise be forbidden.
 const char kAllowLegacyExtensionManifests[] =
     "allow-legacy-extension-manifests";
 
-// Enables extensions to be easily installed from sites other than the web
-// store. Without this flag, they can still be installed, but must be manually
-// dragged onto chrome://extensions/.
-const char kEasyOffStoreExtensionInstall[] = "easy-off-store-extension-install";
-
 // Enables extension APIs that are in development.
 const char kEnableExperimentalExtensionApis[] =
     "enable-experimental-extension-apis";
 
 // Enables extensions to hide bookmarks UI elements.
 const char kEnableOverrideBookmarksUI[] = "enable-override-bookmarks-ui";
 
 // Allows the ErrorConsole to collect runtime and manifest errors, and display
 // them in the chrome:extensions page.
 const char kErrorConsole[] = "error-console";
@@ skipping 23 matching lines @@
 // Makes component extensions appear in chrome://settings/extensions.
 const char kShowComponentExtensionOptions[] =
     "show-component-extension-options";
 
 // Adds the given extension ID to all the permission whitelists.
 const char kWhitelistedExtensionID[] = "whitelisted-extension-id";
 
 }  // namespace switches
 
 }  // namespace extensions