Virtual destructors should have virtual keyword.

webkit/tools/test_shell/test_shell_webkit_init.h

 // Copyright (c) 2011 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_TOOLS_TEST_SHELL_TEST_SHELL_WEBKIT_INIT_H_
 #define WEBKIT_TOOLS_TEST_SHELL_TEST_SHELL_WEBKIT_INIT_H_
 
 #include "base/utf_string_conversions.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebIDBFactory.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebIDBKey.h"
@@ skipping 14 matching lines @@
 #include "webkit/tools/test_shell/test_shell_webblobregistry_impl.h"
 #include "webkit/tools/test_shell/test_shell_webmimeregistry_impl.h"
 
 #if defined(OS_WIN)
 #include "webkit/tools/test_shell/test_shell_webthemeengine.h"
 #endif
 
 class TestShellWebKitInit : public webkit_glue::WebKitClientImpl {
  public:
   explicit TestShellWebKitInit(bool layout_test_mode);
-  ~TestShellWebKitInit();
+  virtual ~TestShellWebKitInit();
 
   virtual WebKit::WebMimeRegistry* mimeRegistry();
   virtual WebKit::WebClipboard* clipboard();
   virtual WebKit::WebFileUtilities* fileUtilities();
   virtual WebKit::WebSandboxSupport* sandboxSupport();
   virtual WebKit::WebCookieJar* cookieJar();
   virtual WebKit::WebBlobRegistry* blobRegistry();
   virtual WebKit::WebFileSystem* fileSystem();
   virtual bool sandboxEnabled();
   virtual WebKit::WebKitClient::FileHandle databaseOpenFile(
@@ skipping 66 matching lines @@
   SimpleWebCookieJarImpl cookie_jar_;
   scoped_refptr<TestShellWebBlobRegistryImpl> blob_registry_;
   SimpleFileSystem file_system_;
 
 #if defined(OS_WIN)
   WebKit::WebThemeEngine* active_theme_engine_;
 #endif
 };
 
 #endif  // WEBKIT_TOOLS_TEST_SHELL_TEST_SHELL_WEBKIT_INIT_H_