Revert 137733 - Use a temp data dir for IDB tests so persistence can be verified.

webkit/support/test_webkit_platform_support.h

 // 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.
 
 #ifndef WEBKIT_SUPPORT_TEST_WEBKIT_PLATFORM_SUPPORT_H_
 #define WEBKIT_SUPPORT_TEST_WEBKIT_PLATFORM_SUPPORT_H_
 
 #include "base/compiler_specific.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebGamepads.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebGraphicsContext3D.h"
@@ skipping 111 matching lines @@
   virtual webkit_glue::WebSocketStreamHandleBridge* CreateWebSocketBridge(
       WebKit::WebSocketStreamHandle* handle,
       webkit_glue::WebSocketStreamHandleDelegate* delegate) OVERRIDE;
 
  private:
   TestShellWebMimeRegistryImpl mime_registry_;
   MockWebClipboardImpl mock_clipboard_;
   webkit_glue::WebFileUtilitiesImpl file_utilities_;
   ScopedTempDir appcache_dir_;
   SimpleAppCacheSystem appcache_system_;
-  ScopedTempDir indexed_db_dir_;
   SimpleDatabaseSystem database_system_;
   SimpleDomStorageSystem dom_storage_system_;
   SimpleWebCookieJarImpl cookie_jar_;
   scoped_refptr<TestShellWebBlobRegistryImpl> blob_registry_;
   SimpleFileSystem file_system_;
   ScopedTempDir file_system_root_;
   WebURLLoaderMockFactory url_loader_factory_;
   bool unit_test_mode_;
   WebKit::WebGamepads gamepad_data_;
 
 #if defined(OS_WIN) || defined(OS_MACOSX)
   WebKit::WebThemeEngine* active_theme_engine_;
 #endif
   DISALLOW_COPY_AND_ASSIGN(TestWebKitPlatformSupport);
 };
 
 #endif  // WEBKIT_SUPPORT_TEST_WEBKIT_PLATFORM_SUPPORT_H_