Revert "Migrate the IndexedDB backend from Blink to Chromium"

content/public/common/content_switches.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 "content/public/common/content_switches.h"
 
 namespace switches {
 
 // By default, file:// URIs cannot read other file:// URIs. This is an
 // override for developers who need the old behavior for testing.
@@ skipping 541 matching lines @@
 const char kNoSandbox[]                     = "no-sandbox";
 
 // Enables the sandboxed processes to run without a job object assigned to them.
 // This flag is required to allow Chrome to run in RemoteApps or Citrix. This
 // flag can reduce the security of the sandboxed processes and allow them to do
 // certain API calls like shut down Windows or access the clipboard. Also we
 // lose the chance to kill some processes until the outer job that owns them
 // finishes.
 const char kAllowNoSandboxJob[]             = "allow-no-sandbox-job";
 
-// Use the new IndexedDB backend implemented in Chromium. By default,
-// the old backend implemented in Blink is used.
-const char kNewIndexedDB[]                  = "new-indexeddb";
-
 // Specifies a command that should be used to launch the plugin process.  Useful
 // for running the plugin process through purify or quantify.  Ex:
 //   --plugin-launcher="path\to\purify /Run=yes"
 const char kPluginLauncher[]                = "plugin-launcher";
 
 // Tells the plugin process the path of the plugin to load
 const char kPluginPath[]                    = "plugin-path";
 
 // Causes the process to run as a plugin subprocess.
 const char kPluginProcess[]                 = "plugin";
@@ skipping 267 matching lines @@
 const char kOverscrollHistoryNavigation[] =
     "overscroll-history-navigation";
 
 // Forward overscroll event data from the renderer to the browser.
 const char kEnableOverscrollNotifications[] = "enable-overscroll-notifications";
 
 // Enables 'image/webp' accept header for image requests.
 const char kEnableWebPInAcceptHeader[] = "enable-webp-in-accept-header";
 
 }  // namespace switches