Migrate the IndexedDB backend from Blink to Chromium

content/renderer/renderer_webkitplatformsupport_impl.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/renderer/renderer_webkitplatformsupport_impl.h"
 
 #include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/lazy_instance.h"
 #include "base/metrics/histogram.h"
@@ skipping 344 matching lines @@
 RendererWebKitPlatformSupportImpl::createLocalStorageNamespace(
     const WebString& path, unsigned quota) {
   return new WebStorageNamespaceImpl();
 }
 
 
 //------------------------------------------------------------------------------
 
 WebIDBFactory* RendererWebKitPlatformSupportImpl::idbFactory() {
   if (!web_idb_factory_) {
-    if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kSingleProcess))
-      web_idb_factory_.reset(WebIDBFactory::create());
+    if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kSingleProcess) &&
+        !CommandLine::ForCurrentProcess()->HasSwitch(switches::kNewIndexedDB))
+        web_idb_factory_.reset(WebIDBFactory::create());
     else
       web_idb_factory_.reset(new RendererWebIDBFactoryImpl());
   }
   return web_idb_factory_.get();
 }
 
 //------------------------------------------------------------------------------
 
 WebFileSystem* RendererWebKitPlatformSupportImpl::fileSystem() {
   if (!web_file_system_)
@@ skipping 524 matching lines @@
 }
 
 //------------------------------------------------------------------------------
 
 WebKit::WebCompositorSupport*
 RendererWebKitPlatformSupportImpl::compositorSupport() {
   return &compositor_support_;
 }
 
 }  // namespace content